Software
Penetration Testing mit mimikatz
- Penetration Tests mit mimikatz von Pass-the-Hash über Kerberoasting bis hin zu Golden Tickets - Funktionsweise und Schwachstellen der Windows Local Security Authority (LSA) und des Kerberos-Protokolls - Alle Angriffe leicht verständlich und Schritt für Schritt erklärt mimikatz ist ein extrem leistungsstarkes Tool für Angriffe auf das Active Directory. Hacker können damit auf Klartextpasswörter, Passwort-Hashes sowie Kerberos Tickets zugreifen, die dadurch erworbenen Rechte in fremden Systemen ausweiten und so die Kontrolle über ganze Firmennetzwerke übernehmen. Aus diesem Grund ist es wichtig, auf Angriffe mit mimikatz vorbereitet zu sein. Damit Sie die Techniken der Angreifer verstehen und erkennen können, zeigt Ihnen IT-Security-Spezialist Sebastian Brabetz in diesem Buch, wie Sie Penetration Tests mit mimikatz in einer sicheren Testumgebung durchführen. Der Autor beschreibt alle Angriffe Schritt für Schritt und erläutert ihre Funktionsweisen leicht verständlich. Dabei setzt er nur grundlegende IT-Security-Kenntnisse voraus. Sie lernen insbesondere folgende Angriffe kennen: Klartextpasswörter aus dem RAM extrahieren Authentifizierung ohne Klartextpasswort mittels Pass-the-Hash Ausnutzen von Kerberos mittels Overpass-the-Hash, Pass-the-Key und Pass-the-Ticket Dumpen von Active Directory Credentials aus Domänencontrollern Erstellen von Silver Tickets und Golden Tickets Cracken der Passwort-Hashes von Service Accounts mittels Kerberoasting Auslesen und Cracken von Domain Cached Credentials Darüber hinaus erfahren Sie, wie Sie die Ausführung von mimikatz sowie die Spuren von mimikatz-Angriffen erkennen. So sind Sie bestens gerüstet, um Ihre Windows-Domäne mit mimikatz auf Schwachstellen zu testen und entsprechenden Angriffen vorzubeugen. Aus dem Inhalt: Sichere Testumgebung einrichten Grundlagen der Windows Local Security Authority (LSA) Funktionsweise des Kerberos-Protokolls Passwörter und Hashes extrahieren: Klartextpasswörter NTLM-Hashes MS-Cache-2-Hashes Schwachstellen des Kerberos-Protokolls ausnutzen: Ticket Granting Tickets und Service Tickets Encryption Keys Credentials des Active Directorys mimikatz-Angriffe erkennen Invoke-Mimikatz und weiterführende Themen Praktisches Glossar
Excel Portable Genius
YOUR GENIUS-LEVEL GUIDE TO EXCEL EXCELLENCEExcel Portable Genius covers the key features of Microsoft Excel in a concise, fast-paced, portable format that provides the perfect quick and easy-to-follow reference for novices and experienced users alike. Written by seasoned tech expert and trainer Lisa A. Bucki, it answers the nine key questions Excel users are most likely to face in their work and adds some hot tips and advice on this incredibly useful—but sometimes difficult-to-learn—program's lesser-known features.* Build formulas to perform powerful calculations* Format data to make it easy to find interpret and to highlight key results* Sort and filter to organize or display specific information* Chart data to pinpoint changes and identify trends* Communicate results by printing and sharingComplete with a comprehensive index and extensive illustrations complementing straightforward instructions, this is the ideal guide to mastery of the world's most popular spreadsheet program.LISA A. BUCKI is an author, trainer, and content creator who's been educating others about computers and software since 1990. She's written dozens of books, provided marketing and training services to her clients, and written online tutorials. She is the co-founder of 1x1 Media.Fun, hip, and straightforward, the Portable Genius series gives forward-thinking computer users useful information in handy, compact books that are easy to navigate and don't skimp on the essentials. Collect the whole series and make the most of your digital lifestyle.Acknowledgments viiIntroduction xivCHAPTER 1 HOW DO I START USING EXCEL? 2Starting and Exiting Excel 4Taking a Look Around 5Reviewing key screen features 5Workbooks versus worksheets 8Changing views 8Zooming 10Working with Files 11Creating a blank file 11Exploring templates 12Opening an existing file 13Switching to another file 14Making Your First Cell Entries 16Moving around the sheet 16Text and values 17Dates and times 19Number formatting on the fly 20Making Selections 21Understanding cells and ranges 22Selecting a range 22Selecting a row or column 23Working with Sheets 24Adding, renaming, and jumping to a sheet 25Moving or copying a sheet 26Saving and Closing a File 27CHAPTER 2 HOW DO I MAKE CHANGES TO MY SHEET? 30Cell Editing Basics 32Making changes 32Commenting when editing 33Clearing cell contents 33Using Undo and Redo 34Spell-checking your work 35Copying or Moving a Range 35Using Paste Special 37Using Auto Fill and Filling Series 38Inserting and Deleting Rows, Columns, and Cells 41Creating Range Names 44Using the Name box 45Using the New Name dialog box 46Assigning multiple range names at once 47Deleting a range name 48Using Find and Replace 50Freezing Rows and Columns On-Screen 51CHAPTER 3 HOW DO I ADD UP THE NUMBERS WITH FORMULAS? 54Entering a Basic Formula 56Typing the formula 56Cell and range references in formulas 57Using the mouse to save time 58Dealing with minor errors 60Learning More About Operators 60Understanding Order of Precedence 63How order of precedence works 63Using parentheses in formulas 64Making a Cell or Range Reference Absolute Rather Than Relative 66Changing the reference type in a formula 66How referencing works when filling, copying, or moving a formula 67Showing Formulas in Cells 69Using Other Formula Review Techniques 70CHAPTER 4 WHEN DO I NEED TO INCLUDE A FUNCTION? 72Understanding Functions 74Using AutoSum on the Home or Formulas Tab 74Typing a Function in a Formula 77Using the Formulas Tab to Insert a Function 79Choosing from the Function Library 79Using Insert Function to find a function 82Using Range Names in Formulas 83Reviewing Some Essential Functions 84CHAPTER 5 HOW DO I USE FORMATTING TO ENHANCE MY WORKSHEET? 90Changing the Number or Date Format 92Using number formats 94Using date and time formats 96Using special and custom formats 96Changing Cell Formatting 99Applying font formatting 100Applying alignment formatting 103Working with Borders and Shading 105Using Styles 107Clearing Formatting 109Understanding Themes 109Reviewing elements of a theme 109Changing themes 110Changing theme colors, fonts, and effects 111Working with Column Width and Row Height 113Using Conditional Formatting to Highlight Information 115CHAPTER 6 HOW DO I USE GRAPHICS IN EXCEL? 118Inserting Simple Graphics 120Shapes 120Pictures 122Icons 126Selecting and Formatting Graphics 127Adding text to shapes 128Changing styles 129Changing sizing and position 132Working with layering, alignment, and rotation 134Inserting WordArt 136Combining and Creating Your Own Graphics 138Creating and Working with SmartArt 141Adding a SmartArt graphic 141Editing and rearranging shapes 143Changing the graphic type and formatting 144Deleting a Graphic 145Adding a Background Image 146CHAPTER 7 HOW DO I MANAGE LISTS OF INFORMATION? 148Arranging a List in Excel 150Cleaning Up Data 152Using Flash Fill 152Using Text to Columns 155Removing duplicates and consolidating 157Sorting, Filtering, and Subtotaling Lists of Information 159Sorting and filtering a list 160Subtotaling a sorted list 162Understanding Excel’s Table Feature 163Converting a range to a table 164Importing or connecting to a list of data 166Changing table styles 168Resizing a table 169Renaming a table 170Sorting and Filtering a Table 170Using Table Calculations 170Adding a calculated column 171Adding a total row 173Converting a Table Back to a Range of Regular Cells 174CHAPTER 8 HOW DO I PRESENT MY DATA IN CHARTS? 176Charts and Their Role in Your Workbooks 178Chart Types 179Creating a Chart 180Changing the Chart Type and Layout 184Formatting Chart Elements 186Changing the Charted Data 189Moving a Chart to Its Own Sheet and Deleting a Chart 190Using Special Charts: Sparklines, PivotTables, and Maps 192CHAPTER 9 HOW DO I PRINT AND SHARE MY CONTENT? 194Creating Headers and Footers 196Changing Page Settings 199Margins 199Orientation and paper size 200Scaling 201Changing Sheet Settings 201Adding print titles 201Controlling whether gridlines and other features print 203Working with Page Breaks 203Setting a print area 204Viewing and moving breaks 204Previewing a Printout and Printing 206Other Ways to Share Information 207Exporting a PDF 208Using OneDrive 209Index 212
OneNote, Teams und mehr smarte Tools für den vernetzten Alltag mit OneDrive
- Mit OneNote & Teams effizient organisieren und kommunizieren- Programm- und geräteübergreifend arbeiten – Synergien nutzenOb privat oder im Büro, ob für Schüler, Lehrer oder Studenten: Eine Reihe kleiner und meist kostenloser Programme steht bereit, um Ihren Alltag leichter und effizienter zu gestalten. Vom simplen Einkaufszettel über das Organisieren von Besprechungen bis zum komplexen Informationsaustausch erweisen sich diese oft unterschätzten Apps als nützliche Helfer. In diesem Buch lernen Sie mehrere dieser praktischen Werkzeuge kennen und erfahren, wie sie perfekt in Ihren Microsoft-Workflow passen. Anschaulich erklären die Autoren die Einstellungsmöglichkeiten und Varianten der Programme im Detail und zeigen, wie Sie die Tools miteinander verknüpfen, um schlaue Synergien zu nutzen. Organisieren Sie sich mit den Apps auf PC, Laptop, Tablet und Smartphone, um überall und jederzeit produktiv sowie stressfrei arbeiten zu können. Sowohl Einsteiger als auch Fortgeschrittene werden von den zahlreichen Tipps und Tricks rund um OneNote, Teams, OneDrive, Sticky Notes, IFTTT & Co. profitieren. Schneller Erfolg ohne Kopfzerbrechen ist garantiert!Aus dem Inhalt:- Mit OneNote Notizen synchron auf PC, Smartphone und Tablet verwalten – von der simplen Liste bis zu komplexen Wiki-Inhalten- Kommunikation und Datenaustausch mit Microsoft Teams- Aufgaben bzw. Einkaufslisten mit ToDo anlegen- Digitale Post-its mit Sticky Notes nutzen- Schnelle Bildschirmfotos und Sprachaufnahmen erstellen- Mit dem Cloud-Speicher OneDrive immer alle Daten griffbereit haben- Office Lens zum Scannen von Dokumenten verwenden- Maße, Einheiten und Währungen schnell umrechnen - Programmübergreifend arbeiten und dafür alle Tools miteinander verknüpfen - Mit IFTTT auch dort Verbindungen schaffen, wo auf den ersten Blick keine sind- Effizienter Datenaustausch zwischen PC, Tablet und Smartphone - Im Team mit anderen zusammenarbeiten – ob im Büro, in der Schule oder in Ihrer Freizeit
Spiele programmieren mit Unity
* 2D- UND 3D-SPIELE SELBST ENTWICKELN* LANDSCHAFTEN UND GEBÄUDE GESTALTEN SOWIE FIGUREN ANIMIEREN * WICHTIGE C#-PROGRAMMIER-ELEMENTE KENNENLERNEN UND ANWENDENUnity ist eine sehr beliebte Spiele-Engine, mit der du eigene 3D-Spiele entwickeln kannst. Der erfahrene Kids-Autor Hans-Georg Schumann zeigt dir, wie du mit Unity und der Programmiersprache C# schnell zu beeindruckenden Ergebnissen kommst.Schritt für Schritt lernst du, wie du Figuren durch die Welt wandern und auch gegen gefährliche Gegner kämpfen lässt. Du erstellst Landschaften mit Bäumen und Seen, gestaltest und animierst eigene Charaktere, und lernst ganz nebenbei das Programmieren in C#. Das Unity-Partikelsystem erzeugt tolle Effekte mit Licht und Schatten, die dem Spiel das nötige Reality-Gefühl geben. Und alles, was du zum Programmieren deiner Spiele brauchst, findest du auch zum Download.AUS DEM INHALT:* Unity starten und ein erstes kleines Kollisionsspiel erstellen* In die Script-Programmierung mit C# einsteigen* Einen Charakter entwerfen und ihm Eigenschaften geben* Ein Jump & Run-Spiel entwickeln* Das Prinzip von 3D verstehen und die Spielfläche mit Bäumen und Wasser gestalten* Ganze Bauwerke entstehen lassen* Die Figur klettern, schwimmen und sogar tauchen lehren* Eine Fantasie-Kreatur entwerfen und durch Animation lebendig werden lassen* Strahlen, Partikel und Sound einbinden* Künstliche Intelligenz nutzen* Energiekontrolle und andere Features aufrüsten* Installationshilfe und Fehlerbehebung Hans-Georg Schumann war Informatik- und Mathematiklehrer an einer Gesamtschule. Er hat viele erfolgreiche Bücher in der mitp-Buchreihe »... für Kids« geschrieben.
Windows 10 - Leichter Einstieg für Senioren
Nachvollziehbare Erklärungen zu Windows 10 in aktueller Auflage.Windows-Experte Günter Born führt Sie leicht verständlich und anschaulich in das aktuelle Windows ein – inklusive der Neuheiten des aktuellen Herbst-Updates.Schritt für Schritt machen Sie sich mit den Grundlagen des Betriebssystems und weiterer Anwendungen vertraut.Sie schreiben Mails, surfen im Internet, sichern Ihre Daten, hören Musik, verwalten und bearbeiten Fotos und passen die Windows-Einstellungen nach Ihren Wünschen an – auf dem PC, Notebook oder Tablet.Aus dem Inhalt:Die ersten Schritte mit Windows 10Die Neuerungen des Herbst-2020-UpdatesLaufwerke, Ordner und DateienDer Umgang mit ProgrammenMit Texten arbeitenFotos verwalten und bearbeitenSpiele und UnterhaltungInternet und E-MailKontakte, Termine und mehrWindows anpassenInhalt & Leseprobe (PDF-Link)
Beginning Java MVC 1.0
Get started with using the new Java MVC 1.0 framework for model, view, and controller development for building modern Java-based web, native, and microservices applications.Beginning Java MVC teaches you the basics, then dives in to models, views, controllers. Next, you learn data binding, events, application types, view engines, and more. You will be given practical examples along the way to reinforce what you have learned. Furthermore, you'll work with annotations, internationalization, security, and deployment.After reading this book, you'll have the know how to build your first full Java-based MVC application.WHAT YOU WILL LEARN* Discover the Java MVC 1.0 APIs and how to use themMaster the Model, View and Controller design pattern * Carry out data binding * Write events* Work with view enginesWHO THIS BOOK IS FORThose new to Java MVC 1.0. Some prior experience with Java programming recommended, especially with JSF or Struts. Peter Späth graduated in 2002 as a physicist and soon afterwards became an IT consultant, mainly for Java-related projects. In 2016 he decided to concentrate on writing books, with his main focus set on software development. With two books about graphics and sound processing and two books for Android and Kotlin programming, his new book addresses beginning Jakarta EE developers willing to develop enterprise-level Java applications with Java EE 8.1. About MVC - Model, View, Controller* History of MVC* MVC in Web Applications* MVC for Java* Finally, Java MVC (JSR-371)* Why MVC* Where is Hello World?2. Prerequisite - Jakarta EE / Java EE* The Nature of Java for Enterprise Applications* Glassfish, a Free Java Server* Using a Preinstalled Java Server* Learning Java for Enterprise Applications* RESTful Services3. Development Workflow* Using Gradle as a Build Framework* Using Eclipse as an IDE* More About Gradle* Developing Using the Console* Installing MVC4. Hello World for Java MVC* Starting The Hello World Project* The Hello World Model* The Hello World View* The Hello World Controller* Using Gradle to Build Hello World* Starting a Jakarta EE Server* Deploying and Testing Hello World5. Start Working With Java MVC* Handling User Input From Forms* Exception Handling in Java MVC* Non-String Post Parameters6. In-Depth Java MVC* The Model* The View: JSPs* The View: Facelets* The Controller7. In-Depth Java MVC - Part II* Injectable Context* Persisating State* Dealing With Page Fragments* Observers* Configuration8. Internationalization* Language Resources* Adding Localized Messages to the Session* Formatting of Data in the View* Using JSF for Formatting* Localized Data Conversion9. Java MVC and EJBs* About Session EJBs* Defining EJBs* Accessing EJBs* EJB Projects* EJBs with Dependencies* Asynchronous EJB Invocation* Timer EJBs10. Connecting Java MVC to a Database* Abstracting Away Database Access With JPA* Setting up a SQL Database* Creating a DataSource* Preparing the Member Registration Application* Adding EclipseLink as ORM* Controllers* Adding Data Access Objects* Updating the View* Adding Entities* Adding Relations11. Logging Java MVC Applications* System Streams* JDK Logging in Glassfish* Using JDK Standard Logging For Other Servers* Adding Log4j Logging to Your Application12. A Java MVC Example Application* The BooKlubb Database* The BooKlubb Eclipse Project* The BooKlubb Infrastructure Classes* Configure BooKlubb Database Access* The BooKlub Internationalization* The BooKlubb Entity Classes* BooKlubb Database Access Via DAOs* The BooKlubb Model* The BooKlubb Controller* The BooKlubb View* Deploying and Testing BooKlubbAppendix* Solutions to The Exercises
QuickBooks 2021 All-in-One For Dummies
DO THE NUMBERS IN DOUBLE-QUICK TIME WITH THIS TRUSTED QUICKBOOKS BESTSELLER!Running your own business can be cool, but some of the financial side—accounting and payroll, for instance—is not always so cool! That's why millions of small business owners around the world bank on QuickBooks to easily manage accounting and financial tasks and save big-time on shelling out for an expensive professional. QuickBooks 2021 All-in-One For Dummies contains eight information-rich mini-books that account for all your financial line-item asks, showing you step-by-step how to plan your perfect budget, simplify tax returns, manage inventory, create invoices, track costs, generate reports, and accurately check off every other accounting and financial-management task that comes across your desk!* Get the most out of QuickBooks 2021* Sharpen up on the basics with an accounting primer* Craft a world-class business plan* Process taxes and payroll in double-quick timeWritten by expert CPA and small business advisor Stephen L. Nelson, QuickBooks All-in-One 2021 For Dummies is the best-selling blue-chip go-to that will save you time and money—and will allow you to enjoy the fruits of your labors!STEPHEN L. NELSON, MBA, CPA, holds an MS in Taxation and provides accounting, business advisory, and tax planning and preparation services to small businesses as a CPA. He has written more than 100 books on computers and financial management.INTRODUCTION 1About This Book 1Foolish Assumptions 2Icons Used in This Book 3Beyond the Book 4Where to Go from Here 4BOOK 1: AN ACCOUNTING PRIMER 7CHAPTER 1: PRINCIPLES OF ACCOUNTING 9The Purpose of Accounting 10The big picture 10Managers, investors, and entrepreneurs 10External creditors 11Government agencies 11Business form generation 12Reviewing the Common Financial Statements 12The income statement 13Balance sheet 16Statement of cash flows 19Other accounting statements 22Putting it all together 23The Philosophy of Accounting 25Revenue principle 25Expense principle 26Matching principle 26Cost principle 26Objectivity principle 27Continuity assumption 27Unit-of-measure assumption 27Separate-entity assumption 28A Few Words about Tax Accounting 28CHAPTER 2: DOUBLE-ENTRY BOOKKEEPING 29The Fiddle-Faddle Method of Accounting 30How Double-Entry Bookkeeping Works 33The accounting model 33Talking mechanics 35Almost a Real-Life Example 38Recording rent expense 39Recording wages expense 39Recording supplies expense 40Recording sales revenue 40Recording cost of goods sold 41Recording the payoff of accounts payable 41Recording the payoff of a loan 42Calculating account balance 42Using T-account analysis results 44A Few Words about How QuickBooks Works 46CHAPTER 3: SPECIAL ACCOUNTING PROBLEMS 49Working with Accounts Receivable 50Recording a sale 50Recording a payment 50Estimating bad-debt expense 51Removing uncollectible accounts receivable 52Recording Accounts Payable Transactions 53Recording a bill 54Paying a bill 54Taking some other accounts payable pointers 55Inventory Accounting 56Dealing with obsolete inventory 56Disposing of obsolete inventory 57Dealing with inventory shrinkage 58Accounting for Fixed Assets 60Purchasing a fixed asset 60Dealing with depreciation 60Disposing of a fixed asset 61Recognizing Liabilities 63Borrowing money 64Making a loan payment 64Accruing liabilities 65Closing Out Revenue and Expense Accounts 68The traditional close 68The QuickBooks close 70One More Thing 71BOOK 2: GETTING READY TO USE QUICKBOOKS 73CHAPTER 1: SETTING UP QUICKBOOKS 75Planning Your New QuickBooks System 75What accounting does 75What accounting systems do 76What QuickBooks does 76And now for the bad news 77Installing QuickBooks 78Dealing with the Presetup Jitters 79Preparing for setup 79Seeing what happens during setup 80Running the QuickBooks Setup Wizard 81Getting the big welcome 81Supplying company information 82Customizing QuickBooks 83Setting your start date 84Reviewing the suggested chart of accounts 86Adding your information to the company file 87Identifying the Starting Trial Balance 89A simple example to start 89A real-life example to finish 91CHAPTER 2: LOADING THE MASTER FILE LISTS 93Setting Up the Chart of Accounts List 94Setting Up the Item List 98Working with the Price Level List 99Using Sales Tax Codes 99Setting Up a Payroll Item List 100Setting Up Classes 101Setting Up a Customer List 103Setting Up the Vendor List 107Setting Up a Fixed Assets List 110Setting Up a Price Level List 112Setting Up a Billing Rate Level List 112Setting Up Your Employees 113Setting Up an Other Names List 113Setting Up the Profile Lists 113CHAPTER 3: FINE-TUNING QUICKBOOKS 115Accessing the Preferences Settings 116Setting the Accounting Preferences 117Using account numbers 118Setting general accounting options 119Setting the Bills Preferences 121Setting the Calendar Preferences 121Setting the Checking Preferences 121Changing the Desktop View 123Setting Finance Charge Calculation Rules 125Setting General Preferences 126Controlling Integrated Applications 128Controlling Inventory 129Controlling How Jobs and Estimates Work 130Dealing with Multiple Currencies 131Starting Integrated Payment Processing 132Controlling How Payroll Works 132Telling QuickBooks How Reminders Should Work 134Specifying Reports & Graphs Preferences 135Setting Sales & Customers Preferences 138Specifying How Sales Are Taxed 140Setting the Search Preferences 141Setting the Send Forms Preferences 141Fine-Tuning the Service Connection 142Controlling Spell Checking 143Controlling How 1099 Tax Reporting Works 144Setting Time & Expenses Preferences 145BOOK 3: BOOKKEEPING CHORES 147CHAPTER 1: INVOICING CUSTOMERS 149Choosing an Invoice Form 149Customizing an Invoice Form 150Choosing a template to customize 150Reviewing the Additional Customization options 150Moving on to Basic Customization 155Working with the Layout Designer tool 157Working with the web-based Forms Customization tool 160Invoicing a Customer 160Billing for Time 166Using a weekly time sheet 166Timing single activities 167Including billable time on an invoice 168Printing Invoices 170Emailing Invoices 171Recording Sales Receipts 172Recording Credit Memos 174Receiving Customer Payments 176Assessing Finance Charges 179Setting up finance-charge rules 179Calculating finance charges 180Using Odds and Ends on the Customers Menu 181CHAPTER 2: PAYING VENDORS 183Creating a Purchase Order 183Creating a real purchase order 184Using some purchase order tips and tricks 187Recording the Receipt of Items 187Simultaneously Recording the Receipt and the Bill 191Entering a Bill 192If you haven’t previously recorded an item receipt 192If you have previously recorded an item receipt 194Paying Bills 196Reviewing the Other Vendor Menu Commands 199Vendor Center 199Sales Tax menu commands 200Inventory Activities menu commands 201Print/E-file 1099s 201Item List 202CHAPTER 3: TRACKING INVENTORY AND ITEMS 203Looking at Your Item List 204Using the Item Code column 204Using the Item List window 205Using inventory reports 206Adding Items to the Item List 206Adding an item: Basic steps 207Adding a service item 208Adding an inventory part 209Adding a noninventory part 211Adding an other-charge item 212Adding a subtotal item 213Adding a group item 214Adding a discount item 215Adding a payment item 216Adding a sales tax item 217Setting up a sales tax group 217Adding custom fields to items 218Editing Items 220Adjusting physical counts and inventory values 220Adjusting prices and price levels 223Using the Change Item Prices command 223Using price levels 224Enabling advanced pricing 226Managing Inventory in a Manufacturing Firm 227Handling manufactured inventory the simple way 227Performing inventory accounting in QuickBooks 228Managing multiple inventory locations 231CHAPTER 4: MANAGING CASH AND BANK ACCOUNTS 233Writing Checks 234Recording and printing a check 234Customizing the check form 239Making Bank Deposits 241Transferring Money between Bank Accounts 244Working with the Register 245Recording register transactions 246Using Register window commands and buttons 249Using Edit Menu Commands 252Reconciling the Bank Account 256Reviewing the Other Banking Commands 260Order Checks & Envelopes command 260Enter Credit Card Charges command 260Bank Feeds command 261Loan Manager command 262Other Names list 262CHAPTER 5: PAYING EMPLOYEES 263Setting Up Basic Payroll 264Signing up for a payroll service 265Setting up employees 265Setting up year-to-date amounts 269Checking your payroll setup data 270Scheduling Payroll Runs 270Paying Employees 270Editing and Voiding Paychecks 272Paying Payroll Liabilities 273BOOK 4: ACCOUNTING CHORES 275CHAPTER 1: FOR ACCOUNTANTS ONLY 277Working with QuickBooks Journal Entries 277Recording a journal entry 278Reversing a journal entry 279Editing journal entries 280Updating Company Information 280Working with Memorized Transactions 280Reviewing the Accountant & Taxes Reports 281Creating an Accountant’s Copy of the QuickBooks Data File 283Using an accountant’s copy 288Reusing an accountant’s copy 288Exporting client changes 288Importing accountant’s changes 289Canceling accountant’s changes 290Troubleshooting accountant’s copy transfers 291Using the Client Data Review Commands 291CHAPTER 2: PREPARING FINANCIAL STATEMENTS AND REPORTS 293Some Wise Words Up Front 293Producing a Report 294Working with the Report Window 295Working with Report window buttons 295Using the Report window boxes 302Modifying a Report 304Using the Display tab 304Using the Filters tab 306Using the Header/Footer tab 308Formatting fonts and numbers 309Processing Multiple Reports 311A Few Words about Document Retention 312CHAPTER 3: PREPARING A BUDGET 315Reviewing Common Budgeting Tactics 315Top-line budgeting 316Zero-based budgeting 316Benchmarking 317Putting it all together 318Taking a Practical Approach to Budgeting 319Using the Set Up Budgets Window 319Creating a new budget 319Working with an existing budget 321Managing with a Budget 323Some Wrap-Up Comments on Budgeting 325CHAPTER 4: USING ACTIVITY-BASED COSTING 327Reviewing Traditional Overhead Allocation 328Understanding How ABC Works 330The ABC product-line income statement 330ABC in a small firm 334Implementing a Simple ABC System 335Seeing How QuickBooks Supports ABC 337Turning On Class Tracking 337Using Classes for ABC 338Setting up your classes 338Classifying revenue amounts 339Classifying expense amounts 339After-the-fact classifications 341Producing ABC reports 342CHAPTER 5: SETTING UP PROJECT AND JOB COSTING SYSTEMS 343Setting Up a QuickBooks Job 343Tracking Job or Project Costs 346Job Cost Reporting 350Using Job Estimates 350Progress Billing 352BOOK 5: FINANCIAL MANAGEMENT 355CHAPTER 1: RATIO ANALYSIS 357Some Caveats about Ratio Analysis 358Liquidity Ratios 359Current ratio 359Acid-test ratio 360Leverage Ratios 361Debt ratio 361Debt equity ratio 362Times interest earned ratio 363Fixed-charges coverage ratio 364Activity Ratios 365Inventory turnover ratio 366Days of inventory ratio 367Average collection period ratio 367Fixed-asset turnover ratio 368Total-assets turnover ratio 369Profitability Ratios 369Gross margin percentage 370Operating income/sales 370Profit margin percentage 371Return on assets 371Return on equity 372CHAPTER 2: ECONOMIC VALUE ADDED ANALYSIS 375Introducing the Logic of EVA 375Seeing EVA in Action 376An example of EVA 378Another example of EVA 378Reviewing Some Important Points about EVA 379Using EVA When Your Business Has Debt 381The first example of the modified EVA formula 381Another EVA with debt example 383Presenting Two Final Pointers 385And Now, a Word to My Critics 386CHAPTER 3: CAPITAL BUDGETING IN A NUTSHELL 389Introducing the Theory of Capital Budgeting 389The big thing is the return 390One little thing is maturity 390Another little thing is risk 391The bottom line 391Calculating the Rate of Return on Capital 392Calculating the investment amount 393Estimating the net cash flows 393Calculating the return 397Measuring Liquidity 402Thinking about Risk 402What Does All of This Have to Do with QuickBooks? 404BOOK 6: BUSINESS PLANS 405CHAPTER 1: PROFIT-VOLUME-COST ANALYSIS 407Seeing How Profit-Volume-Cost Analysis Works 408Calculating Break-Even Points 410Using Real QuickBooks Data for Profit-Volume-Cost Analysis 412Sales revenue 412Gross margin percentage 412Fixed costs 414Recognizing the Downside of the Profit-Volume-Cost Model 414Using the Profit-Volume-Cost Analysis Workbook 416Collecting your inputs 416Understanding the Break-Even Analysis Forecast 419Understanding the Profit-Volume Forecast 421Looking at the profit-volume-cost charts 422CHAPTER 2: CREATING A BUSINESS PLAN FORECAST 427Reviewing Financial Statements and Ratios 428Using the Business Plan Workbook 429Understanding the Workbook Calculations 436Forecasting inputs 437Balance Sheet 437Common Size Balance Sheet 445Income Statement 446Common Size Income Statement 450Cash Flow Statement 451Financial Ratios Table 457Customizing the Starter Workbook 463Changing the number of periods 463Performing ratio analysis on existing financial statements 463Calculating taxes for a current net loss before taxes 464Combining this workbook with other workbooks 464CHAPTER 3: WRITING A BUSINESS PLAN 465What the Term “Business Plan” Means 465A Few Words about Strategic Plans 466Cost strategies 466Differentiated products and services strategies 467Focus strategies 467Look, Ma: No Strategy 468Two comments about tactics 469Six final strategy pointers 469A White-Paper Business Plan 470A New-Venture Plan 473Is the new venture’s product or service feasible? 473Does the market want the product or service? 474Can the product or service be profitably sold? 475Is the return on the venture adequate for prospective investors? 475Can existing management run the business? 476Some final thoughts 477BOOK 7: CARE AND MAINTENANCE 479CHAPTER 1: ADMINISTERING QUICKBOOKS 481Keeping Your Data Confidential 481Using Windows security 482Using QuickBooks security 482Using QuickBooks in a Multiuser Environment 483Setting up additional QuickBooks users 484Changing user rights in Enterprise Solutions 490Changing user rights in QuickBooks Pro and Premier 491Using Audit Trails 493Enabling Simultaneous Multiuser Access 494Maintaining Good Accounting Controls 495CHAPTER 2: PROTECTING YOUR DATA 499Backing Up the QuickBooks Data File 499Backing-up basics 500What about online backup? 503Some backup tactics 504Restoring a QuickBooks Data File 505Condensing the QuickBooks Company Files 509Cleanup basics 510Some cleanup and archiving strategies 515CHAPTER 3: TROUBLESHOOTING 517Using the QuickBooks Help File and This Book 517Browsing Intuit’s Product-Support Website 519Checking Another Vendor’s Product-Support Website 521Tapping into Intuit’s Online and Expert Communities 521When All Else Fails 522BOOK 8: APPENDIXES 523APPENDIX A: A CRASH COURSE IN EXCEL 525Starting Excel 525Stopping Excel 526Explaining Excel’s Workbooks 526Putting Text, Numbers, and Formulas in Cells 527Writing Formulas 528Scrolling through Big Workbooks 529Copying and Cutting Cell Contents 530Copying cell contents 530Moving cell contents 531Moving and copying formulas 531Formatting Cell Contents 532Recognizing That Functions Are Simply Formulas 534Saving and Opening Workbooks 537Saving a workbook 537Opening a workbook 538Printing Excel Workbooks 539One Other Thing to Know 540APPENDIX B: GOVERNMENT WEB RESOURCES FOR BUSINESSES 541Bureau of Economic Analysis 541Finding information at the BEA website 542Downloading a BEA publication 542Uncompressing a BEA publication 543Using a BEA publication 544Bureau of Labor Statistics 544Finding information at the BLS website 545Using BLS information 545Census Bureau 548Finding information at the Census Bureau website 549Using the Census Bureau’s publications 550Using the Census Bureau search engine 550Using the Census Bureau Subjects index 551Securities and Exchange Commission 551Finding information through EDGAR 552Searching the EDGAR database 552Federal Reserve 553Finding information at the Federal Reserve website 554Using the Federal Reserve website’s information 555Government Publishing Office 555Information available at the GPO website 556Searching the GPO database 556Internal Revenue Service 557APPENDIX C: GLOSSARY OF ACCOUNTING AND FINANCIAL TERMS 559Index 589
JavaScript für Kids
Ganz nebenbei lernst du die Bestandteile von JavaScript kennen, so dass Bedingungen, Konstanten, Schleifen und Funktionen deinen Programmierer-Wortschatz im Nu erweitern. Dort, wo es nötig ist, wird auch HTML zur Unterstützung gerufen. Hans-Georg Schumann verrät dir viele Kniffe, um zum guten Programmierer zu werden: Hättest du zum Beispiel gedacht, dass Vererbung im Programm-Code eine Rolle spielt?
Projektmanagement mit Excel
• Projekte planen und steuern mit Excel• Mit Praxisbeispiel, Schritt für Schritt aufgebaut• Termine, Kosten und Ressourcen im Griff• Nützliche VBA-Makros für Projektmanager• Business Intelligence-Berichte mit PowerQuery und Power BI DesktopProjekte planen, überwachen und steuern – das geht auch mit Excel in Microsoft 365. Ignatz Schels und Prof. Dr. Uwe M. Seidel sind erfahrene Projektmanager und Projektcontroller. Sie zeigen Ihnen, wie Sie das Kalkulationsprogramm von Microsoft für effizientes Projektmanagement nutzen können.Hier üben Sie an einem realen Projekt: Sie erstellen Checklisten, Projektstrukturen und Kostenpläne, überwachen Termine und Budgets und dokumentieren mit Infografiken und Diagrammen. Sie lernen mit den beiden Autoren die besten Funktionen und die wichtigsten Analysewerkzeuge von Excel kennen und programmieren Ihre ersten Makros mit der Makrosprache VBA. Projektmanagement mit Excel – probieren Sie es aus, es funktioniert!In der Neuauflage finden Sie praxisnahe Beispiele zu den BI-Tools PowerQuery, Power Pivot und Power BI sowie Tipps zu den aktuellsten Excel-Funktionen und -werkzeugen wie dynamische Arrays.Alle Beispiele, Tools und VBA-Makros stehen zum Download unter plus.hanser-fachbuch.de bereit. Ignatz Schels ist Technik-Informatiker, zertifizierter Projektfachmann (GPM / IPMA) und Excel-Experte derSpitzenklasse. Er programmiert Praxislösungen mit VBA und erstellt Access-Datenbanken. Viele seiner zahlreichen Fachbücher für Controller und Projektmanager sind Bestseller.Uwe M. Seidel ist Professor für Betriebswirtschaft an der OTH Regensburg und Berater für Unternehmen und öffentliche Institutionen in den Bereichen Rechnungswesen, Controlling und Projektmanagement. Außerdemist er freiberuflicher Trainer der Controller Akademie AG und leitet den AK Süd I des Internationalen Controllervereins ( ICV ).
Geschäftsrisiko Cyber-Security
Nicht erst seit Corona warnen Beobachter und Behörden vor einem zu erwartenden rasanten Anstieg von Cyberkriminalität im privaten sowie beruflichen Umfeld. Die Digitalisierung von Geschäftsmodellen, intensivere Vernetzung von Prozessen, Produkten und Geräten und die zuletzt stärkere Nutzung von Netzwerken und Geräten im Homeoffice sind die Treiber im Kampf für mehr IT-Sicherheit. Das essential wendet sich insbesondere an Geschäftsführer von kleinen und mittelständischen Unternehmen, für die der Aufbau einer wirksamen und nachhaltigen Cyber-Security mit hohem Aufwand verbunden ist. Das Buch ermöglicht ein grundlegendes Verständnis zu potenziellen Bedrohungen der Cyber-Security sowie den Auswirkungen und bietet einen Leitfaden für die Entwicklung eines resilienten Sicherheits-Ökosystems.
Learn Microservices with Spring Boot
Build Java-based microservices architecture using the Spring Boot framework by evolving an application from a small monolith to an event-driven architecture composed of several services. This revised book follows an incremental approach in teaching the structure of microservices, test-driven development, and common patterns in distributed systems such as service discovery, load balancing, routing, centralized logs, per-environment configuration, and containerization.This updated book now covers what's been added to the latest Spring Boot release, including support for the latest Java SE; more deep-dive knowledge on how Spring Boot works; testing with JUnit 5; changes in the Spring Cloud tools used for service discovery and load balancing; building Docker images using cloud-native buildpacks; a basic centralized logging solution; E2E traceability with Sleuth; centralized configuration with Consul; many dependency upgrades; support for Spring Data Neumann; and more.Author Moises Macero uses a pragmatic approach to explain the benefits of using this type of software architecture, instead of keeping you distracted with theoretical concepts. He covers some of the state-of-the-art techniques in computer programming, from a practical point of view. You’ll focus on what's important, starting with the minimum viable product but keeping the flexibility to evolve it.WHAT YOU WILL LEARN* Build microservices with Spring Boot* Discover architecture patterns for distributed systems such as asynchronous processing, eventual consistency, resilience, scalability, and more* Use event-driven architecture and messaging with RabbitMQ* Master service discovery with Consul and load balancing with Spring Cloud Load Balancer* Route requests with Spring Cloud Gateway* Keep flexible configurations per environment with Spring Cloud Consul* Trace every request from beginning to end with Sleuth and centralized logging* Deploy your microservices anywhere as Docker containers* Start all the components in the microservice architecture with Docker ComposeWHO THIS BOOK IS FORThose with at least some prior experience with Java programming. Some prior exposure to Spring Boot recommended but not required.MOISÉS MACERO GARCÍA has been a software developer since he was a kid, when he started playing around with BASIC on his ZX Spectrum. During his career, Moisés has most often worked in development and architecture for small and large projects, and for his own startups as well. He enjoys making software problems simple, and he likes working in teams where he can not only coach others, but also learn from them.Moisés is the author of the blog thepracticaldeveloper.com, where he shares solutions for technical challenges, guides, and his view on different ways of working in IT companies. He also organizes workshops for companies that need a practical approach to software engineering. In his free time, he enjoys traveling and hiking.* Introduction* Core concepts* A basic Spring Boot app* A minimal frontend with React* The data layer* Starting with Microservices* Event-Driven Architecture* Cloud native patterns* End-to-End tests with Cucumber
Pro Google Kubernetes Engine
Discover methodologies and best practices for getting started with Google Kubernetes Engine (GKE). This book helps you understand how GKE provides a fully managed environment to deploy and operate containerized applications on Google Cloud infrastructure.You will see how Kubernetes makes it easier for users to manage clusters and the container ecosystem. And you will get detailed guidance on deploying and managing applications, handling administration of container clusters, managing policies, and monitoring cluster resources. You will learn how to operate the GKE environment through the GUI-based Google Cloud console and the "gcloud" command line interface.The book starts with an introduction to GKE and associated services. The authors provide hands-on examples to set up Container Registry and GKE Cluster, and you will follow through an application deployment on GKE. Later chapters focus on securing your GCP GKE environment, GKE monitoring and dashboarding, and CI/CD automation. All of the code presented in the book is provided in the form of scripts, which allow you to try out the examples and extend them in interesting ways.WHAT YOU WILL LEARN* Understand the main container services in GCP (Google Container Registry, Google Kubernetes Engine, Kubernetes Engine, Management Services)* Perform hands-on steps to deploy, secure, scale, monitor, and automate your containerized environment* Deploy a sample microservices application on GKE* Deploy monitoring for your GKE environment* Use DevOps automation in the CI/CD pipeline and integrate it with GKEWHO THIS BOOK IS FORArchitects, developers, and DevOps engineers who want to learn Google Kubernetes EngineNAVIN SABHARWAL has more than 20 years of industry experience and is an innovator, thought leader, patent holder, and author in the areas of cloud computing, artificial intelligence and machine learning, public cloud, DevOps, AIOPS, infrastructure services, monitoring and management platforms, big data analytics, and software product development. He works at HCL Technologies and is responsible for DevOps, artificial intelligence, cloud life cycle management, service management, monitoring and management, IT Ops Analytics, AIOPs and machine learning, automation, operational efficiency of scaled delivery through Lean Ops, strategy, and delivery.PIYUSH PANDEY has more than 10 years of industry experience. He is currently working at HCL Technologies as Automation Architect, delivering solutions catering to hybrid cloud using cloud-native and third-party solutions. The automation solutions cover use cases such as Enterprise Observability, Infra as Code, Server Automation, Runbook Automation, Cloud Management Platform, Cloud Native Automation, and Dashboard/Visibility. He is responsible for designing end-to-end solutions and architecture for enterprise automation adoption. Ch01 - Getting Started with Containers on Google GKE• Introduction to Docker• Sign up for Google Cloud• Setting up environment for Google GKE• Support services for ContainersCh02-Container Image Management with Google Container Registry• Introduction to Google Container Registry• Setting up Google Container Registry• Push Docker image to Google container registryCh03 - Deploy Containerized applications with Google GKE• Setup Google GKE• Create, manage and scale GKE Cluster• Deploy Containers on GKE• Deleting a ClusterCh04-Secure your Containerized Environment• Protect your Containers and Container host on GKE• Protect your code and deploymentsCh05- Scale GKE Containerized environment• Autoscaling a Cluster• Vertical autoscaling a pod• Cluster upgrade and resizingCh06- Monitor your Containerized environment• Monitoring approaches for GKE• Using Stackdriver for GKE Monitoring• Using Prometheus for GKE MonitoringCh07- Automate your Containerized environment• Using Infra as Code solution for Automation• Continuous integration and delivery Automation
Python Testing with Selenium
Implement different testing techniques using Selenium WebDriver with the Python programming language. This quick reference provides simple functional test cases with a syntax-based approach for Selenium WebDriver.You’ll begin by reviewing the basics of Selenium WebDriver and its architectural design history and then move on to the configuration and installation of Selenium library for different web browsers, including the basic commands needed to start test scripts in various browsers. You’ll review action commands of keyboard and mouse for testing user interactions in a web page and see how hyperlinks are tested.The book also examines various web elements using eight different locators provided by Selenium to help you choose the one best suited to your needs. All Python scripts are ready to test real examples, all of which are explained thoroughly with problem statements. You’ll use different Python design patterns to automate test scripts that can be incorporated with Selenium.In the end, Python Testing with Selenium will provide you with the expertise to write your own test cases in future.WHAT YOU’LL LEARN* Install and configure Selenium WebDriver with Python for different web-browsers * Review basic commands of Selenium* Locate web elements * Work with UI based web elements* Assert web elements and handle exceptions* Write test scripts in Page Object Model * Write test cases with Unittest framework WHO THIS BOOK IS FORPython developers/testers who want to test their web applicationsSujay Raghavendra works mainly in the field of data science, machine/deep learning, and artificial intelligence and is currently Executive Director of Raghavendra Training & Consultancy (RTC), a start up company based in Dharwad, Karnataka, India. RTC was co-founded with his brother Sumedh Raghavendra in 2014.He also plans and evaluates new technological projects for research and product development to various companies at RTC. Some of his projects include analyzing pap smear filter for microscopic medical images, thermal heat sensing in hospitals, ocr for handwritten characters, satellite image analysis, network automation for maps, forecasting model, text analytics & predictions, etc.Raghavendra has been a consultant for helping and building research centers for technical universities and colleges and his recent interest includes automating testing cases using machine learning. He has published numerous research articles in international journals and was part of a reviewer committee in various journals and conferences.PYTHON TESTING WITH SELENIUMChapter 1: Introduction to SeleniumChapter 2: Getting StartedChapter 3: Mouse & Keyboard ActionsChapter 4: Web ElementsChapter 5: NavigationChapter 6: Buttons, Checkbox & Select ListChapter 7: Frames and Text BoxesChapter 8: AssertionsChapter 9: Exception HandlingChapter 10: WaitsChapter 11: Page ObjectsChapter 12: Using Test Cases with a Screenshot
Windows 10
Das umfassende Lernbuch und Nachschlagewerk inkl. Updates Winter 2020/2021:- Anschauliche Anleitungen mit vielen Abbildungen - Vom Startmenü über Apps bis zur Sicherheit im Internet - Geeignet für PC, Laptop und Tablet Lernen Sie das Betriebssystem Windows 10 von Grund auf kennen und werden Sie sicher in der Anwendung ! Dieses Handbuch ist ein hilfreicher Ratgeber für Einsteiger und ein praktisches Nachschlagewerk im Arbeitsalltag für den versierten Nutzer. Alle wichtigen Funktionen werden von den beiden Autorinnen Schritt für Schritt erklärt. Sie beginnen mit grundlegenden Techniken und gehen mit gut nachvollziehbaren Anleitungen zu komplexen Themen über, wie z. B. das Verwenden mehrerer Desktops oder die Datensicherung. Egal ob Sie mit PC, Laptop oder Tablet arbeiten: Startmenü, Explorer und der Cloud-Speicher OneDrive sind Ihnen bald genauso vertraut wie der Umgang mit den integrierten Apps Mail, Kalender, Fotos und dem Browser Edge . Darüber hinaus widmet sich ein Kapitel den Einstellungen für Sicherheit und Virenschutz . Dank der Tipps und Beispiele der erfahrenen Dozentinnen werden Sie rundum fit in Microsoft Windows 10 . Aus dem Inhalt: - Grundlegende Eingabetechniken einfach erklärt - So funktionieren Startmenü, Taskleiste und Info-Center - Die Übersicht behalten mithilfe des Aktivitätsverlaufs - Dateien erstellen, bearbeiten, speichern und organisieren - Datensicherung mit dem Cloudspeicher OneDrive - Die Benutzeroberfläche anpassen - Wichtige Einstellungen zu Sicherheit und Datenschutz - Apps installieren und deinstallieren - Microsoft Edge zum Surfen im Internet verwenden - Kommunikations- und Zeitmanagement mit den Apps Mail, Kontakte und Kalender - Wie Sie mit der App Fotos Ihre Bilder verwalten und bearbeiten
Data Parallel C++
Learn how to accelerate C++ programs using data parallelism. This open access book enables C++ programmers to be at the forefront of this exciting and important new development that is helping to push computing to new levels. It is full of practical advice, detailed explanations, and code examples to illustrate key topics.Data parallelism in C++ enables access to parallel resources in a modern heterogeneous system, freeing you from being locked into any particular computing device. Now a single C++ application can use any combination of devices—including GPUs, CPUs, FPGAs and AI ASICs—that are suitable to the problems at hand.This book begins by introducing data parallelism and foundational topics for effective use of the SYCL standard from the Khronos Group and Data Parallel C++ (DPC++), the open source compiler used in this book. Later chapters cover advanced topics including error handling, hardware-specific programming, communication and synchronization, and memory model considerations.Data Parallel C++ provides you with everything needed to use SYCL for programming heterogeneous systems.WHAT YOU'LL LEARN* Accelerate C++ programs using data-parallel programming* Target multiple device types (e.g. CPU, GPU, FPGA)* Use SYCL and SYCL compilers * Connect with computing’s heterogeneous future via Intel’s oneAPI initiativeWHO THIS BOOK IS FORThose new data-parallel programming and computer programmers interested in data-parallel programming using C++.James Reinders is a consultant with more than three decades experience in Parallel Computing, and is an author/co-author/editor of nine technical books related to parallel programming. He has had the great fortune to help make key contributions to two of the world's fastest computers (#1 on Top500 list) as well as many other supercomputers, and software developer tools. James finished 10,001 days (over 27 years) at Intel in mid-2016, and now continues to write, teach, program, and do consulting in areas related to parallel computing (HPC and AI).Chapter 1: IntroductionSets expectation that book describes SYCL 1.2.1 with Intel extensions, and that most extensions are proof points of features that should end up in a future version of SYCL. Overview notion of different accelerator architectures doing well on different workloads, and introduce accelerator archs (but don’t overdo the topic). Overview/level setting on parallelism and relevant terminology, language landscape, SYCL history.• SYCL key feature overview (single source, C++, multi-accelerator) - intended to draw people in and show simple code• Language versions and extensions covered by this book• Mixed-architecture compute and modern architectures• Classes of parallelism• Accelerator programming landscape (OpenMP, CUDA, TBB, OpenACC, AMD HCC, Kokkos, RAJA)• Evolution of SYCLChapter 2: Where code executesDescribes which parts of code run natively on CPU versus on "devices". Differentiate between accelerator devices and the "host device". Show more code to increase reader familiarity with program structure.• Single source programming model• Built-in device selectors• Writing a custom device selectorChapter 3: Data management and ordering the uses of dataOverview the primary ways that data is accessible by both host and device(s): USM and buffers. Introduce command groups as futures for execution, and concept of dependencies between nodes forming a DAG.• Intro• Unified Shared Memory• Buffers• DAG mechanismChapter 4: Expressing parallelismThe multiple alternative constructs for expressing parallelism are hard to comprehend from the spec, and for anyone without major parallel programming experience. This chapter must position the parallelism mechanisms relative to each other, and leave the reader with a conceptual understanding of each, plus an understand of how to use the most common forms.• Parallelism within kernels• Overview of language features for expressions of parallelism• Basic data parallel kernels• Explicit ND-Range kernels• Hierarchical parallelism kernels• Choosing a parallelism/coding styleChapter 5: Error handlingSYCL uses C++-style error handling. This is different/more modern than people using OpenCL and CUDA are used to. This chapter must frame the differences, and provide samples from which readers can manage exceptions easily in their code.• Exception-based• Synchronous and asynchronous exceptions• Strategies for error management• Fallback queue mechanismChapter 6: USM in detailUSM is a key usability feature when porting code, from C++ for example. When mixed with differing hardware capabilities, the USM landscape isn’t trivial to understand. This key chapter must leave the reader with an understanding of USM on different hardware capabilities, what is guaranteed at each level, and how to write code with USM features.• Usability• Device capability levels• Allocating memory• Use of data in kernels• Sharing of data between host and devices• Data ownership and migration• USM as a usability feature• USM as a performance feature• Relation to OpenCL SVMChapter 7: Buffers in detailBuffers will be available on all hardware, and are an important feature for people writing code that doesn’t have pointer-based data structures, particularly when implicit dependence management is desired. This chapter must cover the more complex aspects of buffers in an accessible waym, including when data movement is triggered, sub-buffer dependencies, and advanced host/buffer synchronization (mutexes).• Buffer construction• Access modes (e.g. discard_write) and set_final_data• Device accessors• Host accessors• Sub-buffers for finer grained DAG dependencies• Explicit data motion• Advanced buffer data sharing between device and hostChapter 8: DAG scheduling in detailMust describe the DAG mechanism from a high level, which the spec does not do. Must describe the in-order simplifications, and common gotchas that people hit with the DAG (e.g. read data before buffer destruction and therefore kernel execution).• Queues• Common gotchas with DAGs• Synchronizing with the host program• Manual dependency managementChapter 9: Local memory and work-group barriers• "Local" memory• Managing "local" memory• Work-group barriersChapter 10: Defining kernels• Lambdas• Functors• OpenCL interop objectsChapter 11: Vectors• Vector data types• Swizzles• Mapping to hardwareChapter 12: Device-specific extension mechanism• TBDChapter 13: Programming for GPUs• Use of sub-groups• Device partitioning• Data movement• Images and samplers• TBDChapter 14: Programming for CPUs• Loop vectorization• Use of sub-groups• TBDChapter 15: Programming for FPGAs• Pipes• Memory controls• Loop controlsChapter 16: Address spaces and multi_ptr• Address spaces• The multi_ptr class• Intefacing with external codeChapter 17: Using libraries• Linking to external code• Exchanging data with librariesChapter 18: Working with OpenCL• Interoperability• Program objects• Build options• Using SPIR-V kernelsChapter 19: Memory model and atomics• The memory model• Fences• Buffer atomics• USM atomics
Python 3 for Science and Engineering Applications
If you have mastered the basics of Python and are wanting to explore the language in more depth, this book is for you. By means of concrete application examples used in different applications, you are guided on how Python can be used tackle a wide range of problems. Including general ideas and solutions, the specifics of Python and how these can be practically applied are discussed. The book illustrates many aspects of programming including algorithms, recursion, data structures, and helps develop problem-oriented thinking.Python 3 for Science and Engineering Applications includes:>practical and goal-oriented learning>basic Python techniques> modern Python 3.6+ including comprehensions, decorators andgenerators>complete code available online> more than 40 exercises, solutions documented online>no additional packages or installation required, 100% pure PythonTopics cover:>identifying large prime numbers and computing Pi> writing and understanding recursive functions with memorisation>computing in parallel and utilising all system cores>processing text data and encrypting messages>comprehending backtracking and solving Sudokus>analysing and simulating games of chance to develop optimalwinning strategies>handling genetic code and generating extremely long palindromesFelix Bittmann is a research associate at the Leibniz Institute for Educational Trajectories and a doctoral candidate at the University of Bamberg, Germany. His research interests include social inequality, the role of education in the course of life, quantitative methods, and the philosophy of science. With a focus on statistical analysis and applied research, Python is an integral and multifunctional tool of his daily workflow.
Practical Apache Lucene 8
Gain a thorough knowledge of Lucene's capabilities and use it to develop your own search applications. This book explores the Java-based, high-performance text search engine library used to build search capabilities in your applications.Starting with the basics of Lucene and searching, you will learn about the types of queries used in it and also take a look at scoring models. Applying this basic knowledge, you will develop a hello world app using basic Lucene queries and explore functions like scoring and document level boosting.Along the way you will also uncover the concepts of partial searching and matching in Lucene and then learn how to integrate geographical information (geospatial data) in Lucene using spatial queries and n-dimensional indexing. This will prepare you to build a location-aware search engine with a representative data set that allows location constraints to be specified during a search. You’ll also develop a text classifier using Lucene and Apache Mahout, a popular machine learning framework.After a detailed review of performance bench-marking and common issues associated with it, you’ll learn some of the best practices of tuning the performance of your application. By the end of the book you’ll be able to build your first Lucene patch, where you will not only write your patch, but also test it and ensure it adheres to community coding standards.WHAT YOU’LL LEARN* Master the basics of Apache Lucene* Utilize different query types in Apache Lucene* Explore scoring and document level boosting* Integrate geospatial data into your applicationWHO THIS BOOK IS FORDevelopers wanting to learn the finer details of Apache Lucene by developing a series of projects with it.Atri is a distributed systems engineer with expertise in building and scaling large data oriented systems, and an Apache Lucene/Solr committer. He has worked for Microsoft, where he was responsible for scaling the storage and query engines for Azure CosmosDB. He is also a long time PostgreSQL contributor and an Apache committer and PMC member for HAWQ, MADLib, and Apex.CHAPTER 1: MEETING THE BEAST -- HOIA LUCENE! - 15 PAGESThis chapter will go over basics of Lucene and search, and give details of basic query structures in Lucene along with the different data structures and types in Lucene which can be diverse in application and usage.1. What Is Search, Anyway?2. Meet Lucene3. Types of Structures In Lucene4. Query Types -- Done The Lucene Way5. Lucene Vs Relational DatabasesCHAPTER 2: HELLO WORLD -- THE LUCENE WAY - 10 PAGESThis chapter will try out a few basic Lucene queries on a standard data set. User will index some standard data set and query different types of queries on top of it. The user will explore scoring, document level boosting and queries like TopN hits, uses of Collectors.1. Index Data In Lucene2. Internals of a Lucene Index3. Scoring and Boosting4. Doing your first query5. TopN Hits -- Why Should I Care About the 100th Hit?6. Collectors -- The Life Of Your ApplicationCHAPTER 3: BUILD A PERSONAL DESKTOP FILE SEARCHER - 40 PAGESThis chapter will go over details of building a file searcher using Lucene which will have the capability to search across the entire file system of the user’s computer and provide search results to the user for relevant documents and files given a partial or complete keyword.1. Basics of Document Searching with Lucene2. Partial Searches and Matching3. A Bit About TF/IDF4. Build The Core of Our Searcher5. Building the File System Seek and Search Functionality6. Bringing It All TogetherCHAPTER 4: A BIT ABOUT SPATIAL INDEXING - 20 PAGESBasics of Spatial Indexing and space vectors. The chapter will cover spatial indexing and querying in Lucene and advanced level details of N dimensional indexing and searching.1. Spatial Indexing2. Lucene’s Spatial Indexing Basics3. When To Use Spatial Indexing?4. N Dimensional Indexing5. Lucene Spatial Query TypesCHAPTER 5: DEVELOPING A LOCATION AWARE SEARCH ENGINE - 40 PAGESThis chapter will go over details of building a location aware search engine with representative data set and allowing location constraints to be specified during a search.1. What is Location Aware Searching?2. Representing Data As Spatial Data3. Metadata Searches4. Combining Searches -- Actual Text and Location CombinedCHAPTER 6: CREATE A TEXT CLASSIFIER WITH APACHE MAHOUT AND LUCENE - 30 PAGESThis chapter will go over building a classifier using Apache Mahout, a popular Machine Learning framework and Lucene.1. What is Mahout?2. What is a Text Classifier Engine?3. Building The Model in Mahout4. Building the Parser in Lucene5. Bringing It All TogetherCHAPTER 7: PERFORMANCE TUNING YOUR LUCENE APPLICATIONS - 15 PAGESPerformance is key to any search applications and small changes to the application can cause amplified changes to the performance of the application. We will performance benchmark applications, learn common pitfalls and learn best practices to tune performance in search applications with Lucene.1. Lucene Performance Basics2. Performance Bench-marking3. Lucene Performance Tuning4. Lucene Performance with System Performance ToolsCHAPTER 8: YOUR FIRST LUCENE PATCH - 15 PAGESThis chapter will focus on building your first patch to the heart of the engine itself. We will go through the cycle of writing a patch, testing it, adhering to community code standards, JIRA navigation, community interaction etc.1. Lucene Internals2. Working with Git3. Writing a Patch4. Test Test Test!5. Opening a JIRA for your issue6. Community Interaction
Die UNIX-Story
Ein Betriebssystem, das die IT-Welt am Laufen hält. Die faszinierende Geschichte, wie Unix begann und wie es die Computerwelt eroberte.Brian W. Kernighan war in der Entwicklung von UNIX beteiligt. In diesem kurzen Band erzählt er eine umfassende Geschichte des äußerst einflussreichen und weit verbreiteten Betriebssystems und erzählt aus einer persönlichen Perspektive von den Anfängen. Unix war in seinen frühen Tagen weitgehend das Produkt von Kernighans Kollegen Ken Thompson und Dennis Ritchie von den Bell Labs. Aber Kernighan leistete fast von Anfang an aktive Beiträge. Sein persönliches Wissen verleiht dem Buch einen großen Wert. Kernighan schafft eine gelungene Balance zwischen »offizieller Geschichte« und seinem eigenen Engagement während der Entwicklung von UNIX. Die Konzepte, die mit UNIX und seinem Ökosystem zusammenhängen, erklärt er klar und methodisch. »Die UNIX-History« ist ein kurzweiliges Buch für alle, die mehr über die Geschichte hinter der Geschichte von UNIX erfahren wollen. Mit Insider-Storys und technischen Erklärungen bekommt man einen ganz neuen Blick auf UNIX und auf die Entwicklung von Betriebssystemen.Leseprobe (PDF-Link)
Das neue SAPUI5-Handbuch
Für Einsteiger und SAPUI5-Profis: Programmieren Sie Schritt für Schritt Ihre erste eigene Anwendung, oder starten Sie direkt mit Performanceoptimierung und Fehleranalyse. Dieses Buch beantwortet Ihre Fragen rund um die Anwendungsentwicklung mit SAPUI5. Beginnen Sie z.B. mit der Implementierung einfacher Controls und lernen Sie im Anschluss, wie Smart Controls Ihre Arbeit vereinfachen. Sie möchten lieber gleich wissen, wie Sie Ihre Apps um eigene Controls erweitern? Schlagen Sie es einfach nach! Aus dem Inhalt: BootstrappingLifecycle ManagementOberfächen und Dialoge gestaltenKomponentenorientiertes ProgrammierenAnwendungsdeskriptorSortieren, Gruppieren und FilternEingabevalidierung Eventbasierte KommunikationEntwicklungsinfrastrukturEinführung in die Konzepte von SAP Fiori Einleitung ... 19 Teil I. Einführung ... 27 1. SAPUI5 -- ein Überblick ... 29 1.1 ... Was ist SAPUI5? ... 29 1.2 ... Anwendungsfälle ... 43 2. Grundlegender Aufbau und Ressourcen ... 47 2.1 ... Die Model-View-Controller-Architektur in SAPUI5 ... 47 2.2 ... Aufbau und Struktur einer SAPUI5-Anwendung ... 51 2.3 ... Bibliotheken und Namensräume ... 55 2.4 ... Typen von Views ... 67 2.5 ... Modelle ... 72 2.6 ... Datenbindung ... 81 2.7 ... Entwicklungs- und Laufzeitumgebung ... 89 Teil II. SAPUI5 -- Anwendungsentwicklung ... 99 3. In 7 Schritten zur ersten eigenen Anwendung ... 101 3.1 ... Ablaufumgebung aufsetzen ... 101 3.2 ... Einführung in den Aufbau einer UI5-Anwendung ... 105 3.3 ... Einführung in die Arbeit mit einfachen UI5-Controls ... 115 3.4 ... Verwendung von komplexen UI5-Controls ... 121 3.5 ... Die Programmierschnittstelle von SAPUI5 ... 127 3.6 ... Implementierung von Eventhandlern ... 131 3.7 ... Komponentenorientierte Anwendungsentwicklung ... 137 4. Das Bootstrapping ... 143 4.1 ... Einführung in das Bootstrapping von SAPUI5 ... 143 4.2 ... Komponentenerstellung ... 147 4.3 ... Weitere Konfigurationsmöglichkeiten ... 149 5. Instanziierung und Lebenszyklus ... 153 5.1 ... Einführung in das Lifecycle-Management von SAPUI5 ... 153 5.2 ... Ressourcen verwenden ... 160 6. Benutzeroberflächen und Dialoge gestalten ... 163 6.1 ... Gestaltung von einfachen Benutzeroberflächen ... 163 6.2 ... Gestaltung von komplexen Benutzeroberflächen ... 170 6.3 ... Arbeiten mit Fragmenten ... 178 6.4 ... Dialoge implementieren und verwenden ... 189 7. Arbeiten mit Layouts ... 197 7.1 ... Einführung in die Arbeit mit Layouts ... 197 7.2 ... Standardlayouts zur Anordnung von UI-Controls ... 201 7.3 ... Arbeiten mit Formularlayouts ... 205 7.4 ... Arbeiten mit Fullscreen-Layouts ... 210 8. Responsive und adaptive Benutzeroberflächen ... 217 8.1 ... Responsiv versus adaptiv ... 217 8.2 ... Implementierung responsiver SAPUI5-Anwendungen ... 219 8.3 ... Implementierung adaptiver SAPUI5-Anwendungen ... 233 9. Komponentenorientiertes Programmieren ... 241 9.1 ... Aufbau einer Komponente ... 241 9.2 ... Integration von Komponenten ... 257 10. Anwendungsdeskriptor ... 267 10.1 ... Aufbau des Anwendungsdeskriptors ... 268 10.2 ... Zugriff auf die Konfigurationsdaten zur Laufzeit ... 285 11. Routing und Navigation ... 289 11.1 ... Einführung in die Navigationskonzepte von SAPUI5 ... 289 11.2 ... Navigation am Beispiel einer Master-Detail-Anwendung ... 301 11.3 ... Erweiterte Routingkonzepte ... 315 12. Arbeiten mit Modellen ... 321 12.1 ... JSON-Modell ... 321 12.2 ... Ressourcenmodell ... 325 12.3 ... OData-Modell ... 335 13. Sortieren, gruppieren und filtern ... 351 13.1 ... Sortieren ... 352 13.2 ... Gruppieren ... 362 13.3 ... Filtern ... 371 14. CUDQ mit OData ... 381 14.1 ... Create ... 382 14.2 ... Update ... 397 14.3 ... Delete ... 406 14.4 ... Query ... 408 14.5 ... Funktionsimport ... 414 14.6 ... Das OData-Modell der 4-Version -- ein Ausblick ... 416 15. Eingabevalidierung und eigene Datentypen ... 425 15.1 ... Einführung in die Arbeit mit Datentypen ... 425 15.2 ... Implementierung eigener Datentypen ... 435 Teil III. Weiterführende Themen ... 449 16. Smart Controls ... 451 16.1 ... Einführung in Smart Controls ... 451 16.2 ... Verwendung der »SmartTable« ... 452 16.3 ... »SmartFilterBar« ... 460 16.4 ... »SmartForm« ... 468 17. Implementierung eigener Controls ... 473 17.1 ... Grundlagen der SAPUI5-Control-Entwicklung ... 473 17.2 ... UI-Controls erweitern ... 478 17.3 ... Eigene UI-Controls implementieren ... 483 17.4 ... XML Composite Controls implementieren ... 490 18. Eventbasierte Kommunikation mit dem Event Bus ... 495 18.1 ... Einführung in das eventbasierte Anwendungsdesign ... 495 18.2 ... Der Event Bus in SAPUI5 ... 497 18.3 ... Implementierung einer eventgesteuerten Anwendungskommunikation ... 499 19. Drag and Drop ... 507 19.1 ... Grundlagen der Implementierung von Drag and Drap in SAPUI5 ... 508 19.2 ... Einsatzszenarien von Drag and Drop und ihre Implementierung ... 514 20. Theming ... 527 20.1 ... CSS ... 527 20.2 ... UI Theme Designer ... 530 21. Testen von SAPUI5-Anwendungen ... 547 21.1 ... Grundlagen von Tests in SAPUI5 ... 547 21.2 ... Unit-Tests mit QUnit ... 553 21.3 ... Oberflächentests mit OPA5 ... 563 21.4 ... Daten simulieren mit dem UI5 MockServer ... 577 21.5 ... End-to-End-Tests mit UIVeri5 ... 581 22. Entwicklungsinfrastruktur ... 589 22.1 ... Einführung und Übersicht ... 589 22.2 ... Projektsetup mit dem UI5 Tooling ... 591 22.3 ... Automatisierte Tests für CI ... 600 22.4 ... Versionsverwaltung mit Git ... 606 22.5 ... Aufbau einer Continuous-Deployment-Pipeline ... 617 23. Performanceoptimierung und Fehleranalyse ... 625 23.1 ... Grundlagen der Performanceoptimierung von SAPUI5-Anwendungen ... 626 23.2 ... Der Support Assistant ... 638 23.3 ... Einführung in die Performanceanalyse ... 657 23.4 ... Typische Fehlersituationen in SAPUI5, ihre Ursache und Lösung ... 661 24. SAP Fiori ... 667 24.1 ... Überblick ... 667 24.2 ... Implementierung einer SAPUI5-Anwendung mit der SAP Web IDE ... 677 24.3 ... Fundamental Library Styles ... 699 24.4 ... SAP Fiori Elements ... 705 24.5 ... Integration in das SAP Fiori Launchpad ... 727 Die Autoren ... 739 Index ... 741
Algorithmen und Datenstrukturen
Algorithmen und Datenstrukturen von Grund auf verstehen* Fundierte Einführung mit klarem didaktischen Aufbau* Mit konkreten Anwendungsbeispielen * Eine reichhaltige Fundgrube für Lehre und SelbststudiumKenntnisse von Algorithmen und Datenstrukturen sind ein Grundbaustein des Studiums der Informatik und verwandter Fachrichtungen. Das Buch behandelt diese Thematik in Verbindung mit der Programmiersprache Java und schlägt so eine Brücke zwischen den klassischen Lehrbüchern zur Theorie von Algorithmen und Datenstrukturen und den praktischen Einführungen in eine konkrete Programmiersprache.Die konkreten Algorithmen und deren Realisierung in Java werdenumfassend dargestellt. Daneben werden die theoretischen Grundlagen vermittelt, die in Programmiersprachen-Kursen oft zu kurz kommen: abstrakte Maschinenmodelle, Berechenbarkeit, Algorithmenparadigmen sowie parallele und verteilte Abläufe. Einen weiteren Schwerpunkt bilden Datenstrukturen wie Listen, Bäume, Graphen und Hashtabellen sowie deren objektorientierteImplementierung mit modernen Methoden der Softwareentwicklung.Die 6. Auflage führt einige neue Algorithmen ein und berücksichtigt die Neuerungen der aktuellen Java-Versionen, u.a. zu Themen wie Parallelisierung.Gunter Saake ist Professor für Datenbanken und Informationssysteme an der Uni Magdeburg und forscht unter anderem auf den Gebieten Datenbankintegration, digitale Bibliotheken, objektorientierte Informationssysteme und Informationsfusion. Er ist Koautor mehrerer Lehrbücher, u.a. zu Datenbankkonzepten und -implementierungstechniken, Datenbanken & Java. Kai-Uwe Sattler ist Professor für Datenbanken und Informationssysteme an der TU Ilmenau. Zu seinen Arbeitsgebieten zählen Datenbankintegration und Anfrageverarbeitung in heterogenen sowie massiv verteilten Datenbanksystemen. Er ist Koautor mehrerer Lehrbücher, u.a. zu Datenbankkonzepten und zu Datenbanken & Java.
Basiswissen Medizinische Software (3. Auflg.)
Das Basiswerk für die Entwicklung von Software als Medizinprodukt. 3. überarbeitete und aktualisierte Auflage.Dieses Buch beschreibt den gesamten Lebenszyklus von Software als Medizinprodukt. Es deckt den kompletten CPMS-Lehrplan (Foundation Level) ab und ergänzt ihn durch weitere Informationen. Behandelt werden im Einzelnen:Rechtliche GrundlagenQualitäts- und Dokumentenmanagement (ISO 13485)Risikomanagement und -analyse (ISO 14971)Best Practices des Software Engineering (IEC 62304)Gebrauchstauglichkeit (Benutzungsschnittstellen und IEC 62366)Medizinische InformatikIT-Sicherheit bei MedizinproduktenDas Buch eignet sich zur individuellen Vorbereitung auf die CPMS-Zertifizierungsprüfung und als Begleitliteratur zu den entsprechenden Vorbereitungsschulungen.Die 3. Auflage wurde komplett überarbeitet und beinhaltet den aktuellen Stand der Normen und Richtlinien für die Medizintechnik.Über die Autoren:Professor Christian Johner unterrichtete an mehreren Hochschulen u.a. in Konstanz, Würzburg, Krems, St. Gallen und Stanford Software Engineering, Softwarearchitektur, Softwarequalitätssicherung und Medizinische Informatik. Am „Johner Institut“ bildet der promovierte Physiker im Rahmen von berufsbegleitenden Masterstudiengängen und Seminaren Personen aus, die IT-Lösungen für das Gesundheitswesen entwickeln, prüfen, anwenden und betreiben. Mit seiner Firma berät er Medizinproduktehersteller bei der Entwicklung, Qualitätssicherung und Zulassung von medizinischer Software.Matthias Hölzer-Klüpfel studierte Physik an der Universität Würzburg. Seit 2002 ist er als Entwickler, Berater und Projektleiter tätig. Er führte zahlreiche Medizintechnikprojekte durch und war dabei sowohl bei KMU-Firmen als auch in Großunternehmen im Einsatz. Heute ist er freiberuflicher Berater und unterstützt seine Kunden bei Fragen rund um die Software- und Systementwicklung in der Medizintechnik. Neben seinen beruflichen Tätigkeiten schloss er im Juli 2009 den Masterstudiengang „IT im Gesundheitswesen“ ab. Matthias Hölzer-Klüpfel ist Mitbegründer des Vereins „ICPMSB e.V.“, der die Grundlagen für die Zertifizierungen zum „Certified Professional for Medical Software“ erarbeitet, und Vorsitzender des Richtlinienausschusses „Medical SPICE“ im Verein Deutscher Ingenieure (VDI.)Sven Wittorf hat Elektro- und Informationstechnik an der TU Darmstadt studiert und einen Abschluss als Master of Science im Bereich IT im Gesundheitswesen. Er betreute und schulte Medizinproduktehersteller unterschiedlicher Größe beim Aufsetzen von deren Softwarentwicklungsprozessen. Seit 2012 ist er Geschäftsführender Gesellschafter der Medsoto GmbH, die Softwarewerkzeuge zur Unterstützung des normenkonformen und effizienten Arbeitens in der Medizintechnik erstellt und deren Einführung in Unternehmen begleitet. Er ist Gründungsmitglied des ICPMSB e. V. und Mitglied im nationalen Normungsgremium der IEC 62304 sowie im VDI Fachausschuss „Qualitätssicherung für Software in der Medizintechnik“.
Practical System Programming with C
This book teaches system programming with the latest versions of C through a set of practical examples and problems. It covers the development of a handful of programs, implementing efficient coding examples.Practical System Programming with C contains three main parts: getting your hands dirty with multithreaded C programming; practical system programming using concepts such as processes, signals, and inter-process communication; and advanced socket-based programming which consists of developing a network application for reliable communication.You will be introduced to a marvelous ecosystem of system programming with C, from handling basic system utility commands to communicating through socket programming. With the help of socket programming you will be able to build client-server applications in no time.The “secret sauce” of this book is its curated list of topics and solutions, which fit together through a set of different pragmatic examples; each topic is covered from scratch in an easy-to-learn way. On that journey, you’ll focus on practical implementations and an outline of best practices and potential pitfalls. The book also includes a bonus chapter with a list of advanced topics and directions to grow your skills.WHAT YOU WILL LEARN* Program with operating systems using the latest version of C * Work with Linux* Carry out multithreading with C Examine the POSIX standards* Work with files, directories, processes, and signals* Explore IPC and how to work with itWHO THIS BOOK IS FORProgrammers who have an exposure to C programming and want to learn system programming. This book will help them to learn about core concepts of operating systems with the help of C programming..Sri Manikanta Palakollu is a programmer and software developer with experience in C, C++, Java, and Python as well as Linux, POSIX, and other operating system-level programming. He is a tech reviewer for various tech book publishers. Sri also contributes to various open source projects.1. Introduction to Linux Environment• Getting familiar with Linux Kernel• Linux Kernel V/S Other OS Kernels.• File Handling Utilities• Process Utilities• Network Utilities• Backup Utilities.2. Implementation of Multithreading with C• Introduction to Threads• Threads V/S process• Introduction to Multithreading.• Importance of Multithreading.• Support of Multithreading in C• Creation of threads.• Practical Examples of Multithreading.• Use cases of Multithreading.3. Getting Started with System Programming• Understanding the POSIX Standard.• Introduction to API’s• Importance of API’s• Inbuilt API’s in C4. Files and Directories• Basic concepts in files• Files meta i-nodes• System Calls for Files• I/O Operations for Files• File Permissions.• Soft and Hard Links• System call for Directories.5. Processes and Signals• Introduction to process Environment• Environment Variables• Kernel Support for Processes• Process Creation• Concept of the Zombie process• Concept of Orphan Process• System Calls for Process management• Introduction to Signals• System calls for signals• Types of Signals6. Inter process Communication (IPC)• Introduction to IPC• Types of IPC• Creation of Named PIPES• Creation of UN-Named PIPES• Concept of Message Queues• Implementation of Message Queues• Concept of Semaphore• Implementation of Semaphore.• API for Named and unnamed PIPES• API for Message Queues• API for Semaphore.7. Shared Memory• Introduction to Shared Memory.• Kernel Support for Shared Memory.• Implementation of Shared Memory.• API for Shared Memory.8. Socket Programming• Introduction to Sockets• IPC Over Networks• API for Socket Programming• OSI Layer Protocol• TCP/IP Protocol• Client Server Architecture.• System calls for Socket Programming.• Implementation of Single Client Server Architecture.• Implementation of Multiple Client Server Architecture.9. Advanced Topics and Directions.
Practical Glimpse
Learn how to edit images and create compelling digital art with Glimpse, the newest open source alternative to Adobe Photoshop and GIMP. This book explores Glimpse's broad selection of tools and features that can create beautiful (raster) digital art; painting, drawings, and art created from photos by applying one of the many filters to create artistic effects.You will quickly become acquainted with this powerful program and understand how to use workspace tools and layers. You will learn step-by-step how to correct exposure, digitally retouch and repair damaged photos, and handle just about any photo editing task—even colorizing grayscale images. Practice files are provided with step-by-step instructions to jump into photo editing and art creation.Glimpse is a powerful program that is a viable alternative to Adobe Photoshop and other proprietary software. The possibilities of the art one can create are almost limitless—get started with it using this book today.WHAT YOU'LL LEARN* Navigate the Glimpse workspace* Use layers, which are essential in any professional quality image editing program* Work with the varied tools that Glimpse offers* Enhance, retouch, and modify digital images* Restore and repair damaged family photos, and create composites such as replacing backgrounds* Create compelling digital artwork using the drawing tools and by applying artistic filtersWHO THIS BOOK IS FORAnyone desiring to learn serious image editing with Glimpse. It can be used by both fledgling and professional photographers, freelance graphic designers, students, genealogists, and more. Because it’s free, it can be especially advantageous to teachers, students, and small business owners on a budget.PHILLIP WHITT is an author, photo retouch professional and graphic designer. He is the author of several Apress books and video tutorials pertaining to image editing using GIMP and Adobe Photoshop Elements. He has edited, retouched, and restored countless digital images since the late 1990s. He has served both clients from the general public and a number of commercial clients over the years. In addition to over 20 years of image editing and graphic design experience, he also has an Expert Rating Certification in Adobe Photoshop Skills, and VTC certifications in GIMP and Scribus.PART I. ACQUIRING, INSTALLING, AND GETTING TO KNOW GLIMPSE1. An Overview of Glimpse2. Layers, Channels, Paths, and Undo History3. An Overview of the ToolsPART II. WORKING WITH DIGITAL PHOTOS4. Correcting Exposure and Contrast5. Enhancing, Correcting, and Working with Color6. Modifying, Retouching, and Restoring Photos7. Compositing ImagesPART III. CREATING DIGITAL ART.8. Drawing Basics9. Creating Digital Artwork.10. Using Artistic Filters
Systems and Network Infrastructure Integration
IT infrastructures are now essential in all areas and sectors of human activity; they are the cornerstone of any information system. Thus, it is clear that the greatest of care must be given to their design, implementation, security and supervision in order to ensure optimum functionality and better performance. Within this context, Systems and Network Infrastructure Integration presents the methodological and theoretical principles necessary to successfully carry out an integration project for network and systems infrastructures. This book is aimed at anyone interested in the field of networks in general. In particular, it is intended for students of fields relating to networks and computer systems who are called upon to integrate their knowledge and skills, gained throughout their academic study, into a comprehensive project to set up a complete infrastructure, while respecting the necessary specifications.SAIDA HELALI is a university lecturer in Information Technology (specializing in networks and information systems) at the Institut Supérieur des Etudes Technologiques de Radès (Tunisia). He holds an ACREDITE master's degree (Analysis, Conception and Research in the Domain of Educational Technology Engineering), which was jointly awarded by the Université de Cergy-Pontoise (France), the Université de MONS (Belgium) and the Université de Genève (Switzerland). In 2017, he was chair of the Tunisian branch of the IEEE Education Society and he is also an acting member of AIPU TUNISIE, an international association about university pedagogy.Preface ixCHAPTER 1. INTRODUCTION TO PROJECT MANAGEMENT 11.1. Introduction 11.2. Project management 21.3. Project management methods and tools 31.3.1. Gantt diagram 51.3.2. RACI (Responsible, Accountable, Consulted, Informed) matrix 51.3.3. The concept of specifications 61.4. Chapter summary 8CHAPTER 2. SIMULATING NETWORK ARCHITECTURES WITH GNS3 92.1. Introduction 92.2. Definition 102.3. Introduction to GNS3 112.3.1. Functionalities of GNS3 122.3.2. Limitations 122.3.3. GNS3 installation 122.3.4. Getting started with GNS3 132.4. Chapter summary 25CHAPTER 3. GREEN IT 273.1. Introduction 273.2. Introduction of concept 283.3. Green IT trigger factors 293.4. Benefits of Green IT 293.5. The lifecycle of ICTs 303.6. Mechanisms and technical solutions for the implementation of a Green IT infrastructure 313.7. Green IT labels and standards 333.8. Some examples of Eco-ICTs 343.9. Chapter summary 36CHAPTER 4. DESIGN OF NETWORK INFRASTRUCTURES 374.1. Introduction 374.2. The founding principles of networks 384.2.1. Definition and preliminaries 384.2.2. Classification of digital data networks 394.2.3. Components of a network 404.2.4. Measuring network performance 454.2.5. Concepts of collision domain/broadcast domain and VLANs 474.3. Methods and models of IT network design 484.3.1. Principles of structured engineering 484.4. Assessment of needs and choice of equipment 544.5. Chapter summary 56CHAPTER 5. NETWORK SERVICES 575.1. Introduction 575.2. DHCP service 585.2.1. Introduction 585.2.2. Operating principle 585.2.3. Renewal of lease 625.2.4. The concept of a DHCP relay 625.3. DNS service 635.3.1. Introduction 635.3.2. Operating principle 635.4. LDAP service 665.4.1. Introduction 665.4.2. LDAP protocol 675.4.3. LDAP directory 685.5. E-mail service 705.5.1. Introduction 705.5.2. Architecture and operating principle. 715.5.3. Protocols involved 725.6. Web server 735.6.1. Introduction 735.6.2. Operating principle 735.6.3. The principle of virtual hosting 745.7. FTP file transfer service 765.7.1. Definition 765.7.2. Operating principle 775.7.3. Types 775.8. Chapter summary 78CHAPTER 6. SYSTEM AND NETWORK SECURITY 796.1. Introduction 796.2. Definitions, challenges and basic concepts 806.3. Threats/attacks 826.3.1. Access attacks 826.3.2. Modification attacks 836.3.3. Saturation attacks 836.3.4. Repudiation attacks 836.4. Security mechanisms 836.4.1. Encryption tools 846.4.2. Antivirus programs 846.4.3. Firewalls/IDS and IPS 846.4.4. VPNs 866.4.5. Other means of security 896.5. Security management systems: norms and security policies 916.5.1. Norms 916.5.2. The idea of security policy 926.6. Chapter summary 93CHAPTER 7. VIRTUALIZATION AND CLOUD COMPUTING 957.1. Introduction 957.2. Virtualization 967.2.1. Definition 967.2.2. Benefits of virtualization 967.2.3. Areas of application 977.2.4. Categories of virtualization 1007.2.5. Limits of virtualization 1037.3. Cloud computing 1037.3.1. Definitions 1037.3.2. Leverage factors and generic principles 1047.3.3. Architecture models 1047.3.4. Types of cloud 1077.3.5. Areas of application 1097.3.6. Advantages and limitations 1107.4. Chapter summary 111CHAPTER 8. QUALITY OF SERVICE AND HIGH AVAILABILITY 1138.1. Introduction 1138.2. Quality of service 1148.2.1. Motivation 1148.2.2. Definition(s) 1158.2.3. Objectives of QoS 1168.2.4. Metrics of QoS 1178.2.5. General principles of QoS 1188.2.6. QoS mechanisms 1208.3. High availability 1418.3.1. Redundancy in the physical layer 1438.3.2. Redundancy in the data link layer 1438.3.3. Redundancy in the network layer 1498.3.4. Redundancy in the application layer 1548.4. Chapter summary 156CHAPTER 9. MONITORING SYSTEMS AND NETWORKS 1579.1. Introduction 1579.2. Main concepts of network and service supervision 1589.2.1. Definition 1589.2.2. Challenges of monitoring 1589.2.3. Typology 1599.3. Monitoring protocols 1619.3.1. SNMP protocol (Simple Network Management Protocol) 1619.3.2. WMI (Windows Management Instrumentation) 1649.3.3. WS-Management (Web Services for Management) 1649.3.4. IPMI (Intelligent Platform Management Interface) 1649.3.5. NetFlow/IPFIX 1659.3.6. Netconf 1659.4. Monitoring tools 1659.4.1. Commercial monitoring solutions (HP OpenView, Tivoli) and software publisher solutions 1669.4.2. Free monitoring solutions 1679.5. Chapter summary 171References 173Index 179