عنوان

Ubuntu unleashed :

(Number (ISBN

0672336936

(Number (ISBN

9780672336935

Number

b561876

Title Proper

Ubuntu unleashed :

General Material Designation

[Book]

Other Title Information

2014 edition

First Statement of Responsibility

Matthew Hlemke with Andrew Hudson and Paul Hudson.

Place of Publication, Distribution, etc.

Indianapolis, Ind

Name of Publisher, Distributor, etc.

Sams

Date of Publication, Distribution, etc.

2014

Specific Material Designation and Extent of Item

876 Seiten : Illustrationen + 1 CD-ROM

Text of Note

La couv. porte: Ubuntu 13.10 on DVD. - Covering 13.10 and 14.04.

Text of Note

824 Mono 825 Ruby 825 Rust 826 Scala 826 Scratch 826 Vala 827 References 827 45 Beginning Mobile Development for Android 829 Introduction to Android 830 Hardware 830 Linux Kernel 830 Libraries 830 Android Runtime 830 Application Framework 830 Applications 831 Installing the Android SDK 831 Install Java 831 Install Eclipse 831 Install the SDK 831 Install the ADT Eclipse Plug-In 832 Install Other Components 832 Install Virtual Devices 833 Create Your First Application 834 References 835 46 Developing for Ubuntu Mobile/Touch 837 Install the SDK 838 Create Your First Application 838 Learn About Ubuntu Design 839 Study the User Interface Toolkit 839 References 840 Index 841

Text of Note

mod_proxy 514 mod_rewrite 514 mod_setenvif 514 mod_speling 514 mod_status 514 mod_ssl 514 mod_unique_id 515 mod_userdir 515 mod_usertrack 515 mod_vhost_alias 515 Virtual Hosting 515 Address-Based Virtual Hosts 515 Name-Based Virtual Hosts 516 Logging 517 References 519 24 Nginx Web Server Management 521 About the Nginx Web Server 521 Installing the Nginx Server 523 Installing from the Ubuntu Repositories 523 Building the Source Yourself 524 Configuring the Nginx Server 524 Virtual Hosting 527 Setting Up PHP 528 Adding and Configuring Modules 530 References 530 25 Other HTTP Servers 531 lighttpd 531 Yaws 532 Cherokee 533 Jetty 533 thttpd 534 Apache Tomcat 534 References 534 26 Remote File Serving with FTP 535 Choosing an FTP Server 535 Choosing an Authenticated or Anonymous Server 536 Ubuntu FTP Server Packages 536 Other FTP Servers 536 Installing FTP Software 537 The FTP User 538 Configuring the Very Secure FTP Server 540 Controlling Anonymous Access 541 Other vsftpd Server Configuration Files 542 Using the ftphosts File to Allow or Deny FTP Server Connection 543 References 544 27 Handling Email 545 How Email Is Sent and Received 545 The Mail Transport Agent 546 Choosing an MTA 548 The Mail Delivery Agent 548 The Mail User Agent 549 Basic Postfix Configuration and Operation 550 Configuring Masquerading 552 Using Smart Hosts 553 Setting Message Delivery Intervals 553 Mail Relaying 554 Forwarding Email with Aliases 554 Using Fetchmail to Retrieve Mail 555 Installing Fetchmail 555 Configuring Fetchmail 555 Choosing a Mail Delivery Agent 559 Procmail 559 Spamassassin 559 Squirrelmail 560 Virus Scanners 560 Autoresponders 560 Alternatives to Microsoft Exchange Server 560 Microsoft Exchange Server/Outlook Client 561 CommuniGate Pro 561 Oracle Beehive 562 Bynari 562 Open-Xchange 562 phpgroupware 562 PHProjekt 562 Horde 562 References 563 28 Proxying, Reverse Proxying, and Virtual Private Networks (VPN) 565 What Is a Proxy Server? 565 Installing Squid 566 Configuring Clients 566 Access Control Lists 567 Specifying Client IP Addresses 571 Sample Configurations 572 Virtual Private Networks (VPN) 574 Setting Up a VPN Client 575 Setting Up a VPN Server 577 References 579 29 Administering Relational Database Services 581 A Brief Review of Database Basics 582 How Relational Databases Work 584 Understanding SQL Basics 586 Creating Tables 586 Inserting Data into Tables 587 Retrieving Data from a Database 588 Choosing a Database: MySQL Versus PostgreSQL 590 Speed 590 Data Locking 591 ACID Compliance in Transaction Processing to Protect Data Integrity 591 SQL Subqueries 592 Procedural Languages and Triggers 592 Configuring MySQL 593 Setting a Password for the MySQL Root User 594 Creating a Database in MySQL 594 Configuring PostgreSQL 596 Initializing the Data Directory in PostgreSQL 596 Creating a Database in PostgreSQL 597 Creating Database Users in PostgreSQL 598 Deleting Database Users in PostgreSQL 598 Granting and Revoking Privileges in PostgreSQL 599 Database Clients 599 SSH Access to a Database 600 Local GUI Client Access to a Database 601 Web Access to a Database 602 The MySQL Command-Line Client 603 The PostgreSQL Command-Line Client 604 Graphical Clients 605 References 605 30 NoSQL Databases 607 Key/Value Stores 610 Berkeley DB 610 Cassandra 611 Memcached and MemcacheDB 611 Redis 612 Riak 612 Document Stores 612 CouchDB 613 MongoDB 614 BaseX 614 Wide Column Stores 615 BigTable 615 HBase 615 Graph Stores 616 Neo4j 616 OrientDB 616 HyperGraphDB 616 FlockDB 617 References 617 31 Lightweight Directory Access Protocol (LDAP) 619 Configuring the Server 620 Creating Your Schema 620 Populating Your Directory 622 Configuring Clients 624 Evolution 624 Thunderbird 625 Administration 625 References 626 32 Linux Terminal Server Project (LTSP) 627 Requirements 628 Installation 631 Using LTSP 632 References 633 33 Virtualization on Ubuntu 635 KVM 637 VirtualBox 641 VMware 643 Xen 643 References 643 34 Ubuntu in the Cloud 645 Why a Cloud? 646 Software as a Service (SaaS) 647 Platform as a Service (PaaS) 647 Infrastructure as a Service (IaaS) 647 Metal as a Service (MaaS) 647 Before You Do Anything 648 Ubuntu Cloud and Eucalyptus 648 Deploy/Install Basics: Public or Private? 650 Public 650 Private 651 A euca2ools Primer 654 Ubuntu Cloud and OpenStack 656 Compute Infrastructure (Nova) 656 Storage Infrastructure (Swift) 657 Imaging Service (Glance) 657 Installation 657 Creating an Image 667 Instance Management 670 Storage Management 671 Network Management 671 An OpenStack Commands Primer 672 Learning More 672 672 Getting Started 673 Charms 676 The GUI 677 on Mac OS X 678 Ubuntu Metal as a Service (MaaS) 678 Landscape 679 References 679 35 Managing Sets of Servers 681 681 Puppet 682 Chef 682 CFEngine 683 Ansible 683 Landscape 683 References 683 36 Name Serving with the Domain Name System (DNS) 685 Understanding Domain Names 687 DNS Servers 687 DNS Records 688 Setting Up a DNS Server with BIND 691 References 693 Part V Programming Linux 37 Opportunistic Development 695 Version Control Systems 696 Managing Software Projects with Subversion 696 Managing Software Projects with Bazaar 697 Managing Software Projects with Mercurial 698 Managing Software Projects with Git 699 Introduction to Opportunistic Development 700 Launchpad 701 Quickly 703 Ground Control 707 Bikeshed and Other Tools 711 References 713 38 Helping with Ubuntu Development 715 Introduction to Ubuntu Development 716 Setting Up Your Development System 717 Install Basic Packages and Configure 717 Create a Launchpad Account 718 Set Up Your Environment to Work with Launchpad 718 Fixing Bugs and Packaging 720 Finding Bugs to Fix with Harvest 723 Masters of the Universe 723 References 723 39 Helping with Ubuntu Testing and QA 725 Community Teams 725 Ubuntu Testing Team 726 QA Team 726 Bug Squad 727 Test Drive 727 References 730 40 Using Perl 731 Using Perl with Linux 731 Perl Versions 732 A Simple Perl Program 732 Perl Variables and Data Structures 734 Perl Variable Types 735 Special Variables 735 Operators 736 Comparison Operators 736 Compound Operators 737 Arithmetic Operators 737 Other Operators 738 Special String Constants 738 Conditional Statements: if/else and unless 739 if 739 unless 740 Looping 740 for 740 foreach 741 while 741 until 742 last and next 742 do while and do until 742 Regular Expressions 743 Access to the Shell 744 Modules and CPAN 745 Code Examples 745 Sending Mail 745 Purging Logs 747 Posting to Usenet 748 One-Liners 749 Command-Line Processing 750 References 750 41 Using Python 753 Python on Linux 754 The Basics of Python 755 Numbers 755 More on Strings 757 Lists 760 Dictionaries 762 Conditionals and Looping 763 Functions 765 Object Orientation 766 Class and Object Variables 767 Constructors and Destructors 768 Class Inheritance 769 The Standard Library and the Python Package Index 771 References 771 42 Using PHP 773 Introduction to PHP 774 Entering and Exiting PHP Mode 774 Variables 774 Arrays 776 Constants 778 References 778 Comments 779 Escape Sequences 779 Variable Substitution 780 Operators 781 Conditional Statements 783 Special Operators 784 Switching 785 Loops 787 Including Other Files 789 Basic Functions 790 Strings 790 Arrays 793 Files 795 Miscellaneous 797 Handling HTML Forms 801 Databases 801 References 804 43 C/C++ Programming Tools for Ubuntu 805 Programming in C with Linux 806 Using the C Programming Project Management Tools Provided with Ubuntu 807 Building Programs with make 807 Using Makefiles 807 Using the autoconf Utility to Configure Code 809 Debugging Tools 810 Using the GNU C Compiler 811 Graphical Development Tools 812 Using the KDevelop Client 812 The Glade Client for Developing in GNOME 813 References 814 Part VI Appendices 44 Using Other Popular Programming Languages 817 Ada 818 Clojure 819 COBOL 819 D 820 Erlang 820 Forth 821 Go 821 Fortran 822 Groovy 822 Haskell 822 Java 823 JavaScript 823 Lisp 824 Lua

Text of Note

Ubuntu Commands 258 References 259 13 Automating Tasks and Shell Scripting 261 Scheduling Tasks 261 Using at and batch to Schedule Tasks for Later 261 Using cron to Run Jobs Repeatedly 264 Using rtcwake to Wake Your Computer from Sleep Automatically 266 Basic Shell Control 268 The Shell Command Line 269 Shell Pattern-Matching Support 270 Redirecting Input and Output 271 Piping Data 272 Background Processing 272 Writing and Executing a Shell Script 273 Running the New Shell Program 274 Storing Shell Scripts for System-wide Access 275 Interpreting Shell Scripts Through Specific Shells 276 Using Variables in Shell Scripts 277 Assigning a Value to a Variable 278 Accessing Variable Values 278 Positional Parameters 278 A Simple Example of a Positional Parameter 279 Using Positional Parameters to Access and Retrieve Variables from the Command Line 280 Using a Simple Script to Automate Tasks 280 Built-In Variables 282 Special Characters 283 Using Double Quotes to Resolve Variables in Strings with Embedded Spaces 284 Using Single Quotes to Maintain Unexpanded Variables 284 Using the Backslash as an Escape Character 285 Using the Backtick to Replace a String with Output 286 Comparison of Expressions in pdksh and bash 286 Comparing Expressions with tcsh 291 The for Statement 295 The while Statement 297 The until Statement 298 The repeat Statement (tcsh) 299 The select Statement (pdksh) 299 The shift Statement 300 The if Statement 300 The case Statement 302 The break and exit Statements 304 Using Functions in Shell Scripts 304 References 305 14 The Boot Process 307 Running Services at Boot 307 Beginning the Boot Loading Process 308 Loading the Linux Kernel 309 System Services and Runlevels 310 Runlevel Definitions 310 Booting into the Default Runlevel 311 Understanding init Scripts and the Final Stage of Initialization 311 Controlling Services at Boot with Administrative Tools 312 Changing Runlevels 312 Troubleshooting Runlevel Problems 313 Starting and Stopping Services Manually 314 Using Upstart 315 References 316 15 System-Monitoring Tools 317 Console-Based Monitoring 317 Using the kill Command to Control Processes 319 Using Priority Scheduling and Control 320 Displaying Free and Used Memory with free 323 Disk Space 323 Disk Quotas 324 Checking Log Files 324 Graphical Process and System Management Tools 326 System Monitor 326 Conky 328 Other 333 KDE Process- and System-Monitoring Tools 333 Enterprise Server Monitoring 333 Landscape 334 Other 334 References 334 16 Backing Up 335 Choosing a Backup Strategy 335 Why Data Loss Occurs 336 Assessing Your Backup Needs and Resources 337 Evaluating Backup Strategies 339 Making the Choice 342 Choosing Backup Hardware and Media 342 Removable Storage Media 342 CD-RW and DVD+RW/-RW Drives 343 Network Storage 343 Tape Drive Backup 343 Cloud Storage 344 Using Backup Software 344 tar: The Most Basic Backup Tool 345 The GNOME File Roller 347 The KDE ark Archiving Tool 348 Deja Dup 348 Back In Time 350 Unison 352 Using the Amanda Backup Application 352 Alternative Backup Software 353 Copying Files 354 Copying Files Using tar 354 Compressing, Encrypting, and Sending tar Streams 355 Copying Files Using cp 355 Copying Files Using mc 356 Using rsync 356 Version Control for Configuration Files 358 System Rescue 360 The Ubuntu Rescue Disc 361 Restoring the GRUB2 Boot Loader 361 Saving Files from a Nonbooting Hard Drive 362 References 362 17 Networking 363 Laying the Foundation: The localhost Interface 364 Checking for the Availability of the Loopback Interface 364 Configuring the Loopback Interface Manually 364 Checking Connections with ping, traceroute, and mtr 366 Networking with TCP/IP 368 TCP/IP Addressing 369 Using IP Masquerading in Ubuntu 371 Ports 372 IPv6 Basics 372 Network Organization 375 Subnetting 375 Subnet Masks 376 Broadcast, Unicast, and Multicast Addressing 376 Hardware Devices for Networking 377 Network Interface Cards 377 Network Cable 379 Hubs and Switches 380 Routers and Bridges 381 Initializing New Network Hardware 381 Using Network Configuration Tools 383 Command-Line Network Interface Configuration 384 Network Configuration Files 389 Using Graphical Configuration Tools 391 Dynamic Host Configuration Protocol 393 How DHCP Works 393 Activating DHCP at Installation and Boot Time 394 DHCP Software Installation and Configuration 395 Using DHCP to Configure Network Hosts 397 Other Uses for DHCP 399 Wireless Networking 399 Support for Wireless Networking in Ubuntu 399 Advantages of Wireless Networking 401 Choosing from Among Available Wireless Protocols 401 Beyond the Network and onto the Internet 402 Common Configuration Information 402 Configuring Digital Subscriber Line Access 404 Understanding PPP over Ethernet 404 Configuring a PPPoE Connection Manually 405 Configuring Dial-Up Internet Access 406 Troubleshooting Connection Problems 407 References 408 18 Remote Access with SSH and Telnet 409 Setting Up a Telnet Server 409 Telnet Versus SSH 411 Setting Up an SSH Server 411 SSH Tools 411 Using scp to Copy Individual Files Between Machines 412 Using sftp to Copy Many Files Between Machines 413 Using ssh-keygen to Enable Key-Based Logins 413 Virtual Network Computing 415 References 417 19 Securing Your Machines 419 Understanding Computer Attacks 419 Assessing Your Vulnerability 421 Protecting Your Machine 422 Securing a Wireless Network 423 Passwords and Physical Security 423 Configuring and Using Tripwire 424 Devices 425 Viruses 425 Configuring Your Firewall 426 AppArmor 430 Forming a Disaster Recovery Plan 432 References 433 20 Performance Tuning 435 Hard Disk 435 Using the BIOS and Kernel to Tune the Disk Drives 436 The hdparm Command 437 File System Tuning 438 The tune2fs Command 438 The e2fsck Command 439 The badblocks Command 439 Disabling File Access Time 439 Kernel 440 Apache 441 MySQL 442 Measuring Key Buffer Usage 442 Using the Query Cache 444 Miscellaneous Tweaks 445 Query Optimization 446 References 446 21 Kernel and Module Management 447 The Linux Kernel 448 The Linux Source Tree 449 Types of Kernels 451 Managing Modules 452 When to Recompile 454 Kernel Versions 455 Obtaining the Kernel Sources 456 Patching the Kernel 457 Compiling the Kernel 458 Using xconfig to Configure the Kernel 461 Creating an Initial RAM Disk Image 464 When Something Goes Wrong 465 Errors During Compile 465 Runtime Errors, Boot Loader Problems, and Kernel Oops 466 References 466 Part IV Ubuntu as a Server 22 Sharing Files and Printers 469 Using the Network File System 470 Installing and Starting or Stopping NFS 470 NFS Server Configuration 470 NFS Client Configuration 472 Putting Samba to Work 473 Manually Configuring Samba with /etc/samba/smb.conf 474 Testing Samba with the testparm Command 477 Starting, Stopping, and Restarting the smbd Daemon 478 Mounting Samba Shares 479 Configuring Samba Using SWAT 480 Network and Remote Printing with Ubuntu 483 Creating Network Printers 484 Using the Common UNIX Printing System GUI 486 Avoiding Printer Support Problems 488 References 489 23 Apache Web Server Management 491 About the Apache Web Server 491 Installing the Apache Server 492 Installing from the Ubuntu Repositories 493 Building the Source Yourself 494 Starting and Stopping Apache 497 Starting the Apache Server Manually 497 Using /etc/init.d/apache2 498 Runtime Server Configuration Settings 499 Runtime Configuration Directives 500 Editing apache2.conf 500 Apache Multiprocessing Modules 503 Using .htaccess Configuration Files 503 File System Authentication and Access Control 505 Restricting Access with allow and deny 506 Authentication 507 Final Words on Access Control 509 Apache Modules 510 mod_access 510 mod_alias 511 mod_asis 511 mod_auth 511 mod_auth_anon 512 mod_auth_dbm 512 mod_auth_digest 512 mod_autoindex 512 mod_cgi 512 mod_dir and mod_env 512 mod_expires 513 mod_headers 513 mod_include 513 mod_info and mod_log_config 513 mod_mime and mod_mime_magic 513 mod_negotiation 513

Text of Note

Introduction 1 Licensing 2 Who This Book Is For 3 Those Wanting to Become Intermediate or Advanced Users 3 Sysadmins, Programmers, and DevOps 4 What This Book Contains 5 Conventions Used in This Book 6 Part I Getting Started 1 Installing Ubuntu and Post-Installation Configuration 9 Before You Begin the Installation 9 Researching Your Hardware Specifications 10 Installation Options 10 32-Bit vs 64-Bit Ubuntu 12 Planning Partition Strategies 12 The Boot Loader 13 Installing from DVD or USB Drive 14 Step-by-Step Installation 14 Installing 15 First Update 19 Shutting Down 19 Finding Programs and Files 20 Software Updater 21 The sudo Command 24 Configuring Software Repositories 25 System Settings 27 Detecting and Configuring a Printer 28 Configuring Power Management in Ubuntu 29 Setting the Time and Date 29 Configuring Wireless Networks 31 Troubleshooting Post-Installation Configuration Problems 33 References 34 2 Background Information and Resources 35 What Is Linux? 35 Why Use Linux? 36 What Is Ubuntu? 38 Ubuntu for Business 39 Ubuntu in Your Home 40 Getting the Most from Ubuntu and Linux Documentation 40 Ubuntu Developers and Documentation 42 Websites and Search Engines 42 Web Search Tips 42 Google Is Your Friend 43 Ubuntu Package Listings 43 Commercial Support 44 Documentation 44 Linux Guides 44 Ubuntu 45 Mailing Lists 46 Ubuntu Project Mailing Lists 46 Internet Relay Chat 47 Part II Desktop Ubuntu 3 Working with Unity 49 Foundations and the X Server 49 Basic X Concepts 50 Using X 51 Elements of the xorg.conf File 52 Starting X 57 Using a Display Manager 58 Changing Window Managers 58 Using Unity, a Primer 59 The Desktop 59 Customizing and Configuring Unity 65 Power Shortcuts 66 References 67 4 On the Internet 69 Getting Started with Firefox 70 Checking Out Google Chrome and Chromium 71 Choosing an Email Client 73 Mozilla Thunderbird 73 Evolution 74 Other Mail Clients 75 RSS Readers 76 Firefox 76 Liferea 76 Instant Messaging and Video Conferencing with Empathy 77 Internet Relay Chat 78 Usenet Newsgroups 80 Ubuntu One Cloud Storage 82 References 82 5 Productivity Applications 83 Introducing LibreOffice 85 Other Office Suites for Ubuntu 87 Working with GNOME Office 87 Working with KOffice 88 Other Useful Productivity Software 89 Working with PDF 89 Working with XML and DocBook 89 Working with LaTeX 91 Productivity Applications Written for Microsoft Windows 91 References 92 6 Multimedia Applications 93 Sound and Music 93 Sound Cards 94 Adjusting Volume 95 Sound Formats 96 Listening to Music 97 Buying Music in the Ubuntu One Music Store 99 Graphics Manipulation 100 The GNU Image Manipulation Program 101 Using Scanners in Ubuntu 103 Working with Graphics Formats 103 Capturing Screen Images 105 Other Graphics Manipulation Options 106 Using Digital Cameras with Ubuntu 106 Handheld Digital Cameras 106 Using Shotwell Photo Manager 107 Burning CDs and DVDs in Ubuntu 107 Creating CDs and DVDs with Brasero 108 Creating CDs from the Command Line 109 Creating DVDs from the Command Line 110 Viewing Video 112 TV and Video Hardware 112 Video Formats 114 Viewing Video in Linux 114 Personal Video Recorders 116 Video Editing 116 References 117 7 Other Ubuntu Interfaces 119 Desktop Environment 120 KDE and Kubuntu 121 Xfce and Xubuntu 122 LXDE and Lubuntu 123 GNOME 3 and Ubuntu GNOME 124 Ubuntu Kylin 125 References 126 8 Games 127 Ubuntu Gaming 127 Installing Proprietary Video Drivers 128 Installing Games in Ubuntu 129 Warsow 130 Scorched 3D 130 Frozen Bubble 131 SuperTux 132 Battle for Wesnoth 132 Frets on Fire 134 FlightGear 134 Speed Dreams 134 Games for Kids 134 Commercial Games 135 Playing Windows Games 136 References 136 Part III System Administration 9 Managing Software 139 Ubuntu Software Center 139 Using Synaptic for Software Management 140 Staying Up-to-Date 142 Working on the Command Line 143 Day-to-Day Usage 144 Finding Software 147 Compiling Software from Source 148 Compiling from a Tarball 148 Compiling from Source from the Ubuntu Repositories 149 Configuration Management 150 dotdee 150 OneConf 151 References 151 10 Command-Line Quickstart 153 What Is the Command Line? 154 Accessing the Command Line 155 Text-Based Console Login 156 Logging Out 157 Logging In and Out from a Remote Computer 157 User Accounts 158 Reading Documentation 160 Using Man Pages 160 Using apropros 160 Using whereis 161 Understanding the Linux File System Hierarchy 161 Essential Commands in /bin and /sbin 162 Configuration Files in /etc 163 User Directories: /home 163 Using the Contents of the /proc Directory to Interact with the Kernel 164 Working with Shared Data in the /usr Directory 165 Temporary File Storage in the /tmp Directory 166 Accessing Variable Data Files in the /var Directory 166 Navigating the Linux File System 166 Listing the Contents of a Directory with ls 166 Changing Directories with cd 168 Finding Your Current Directory with pwd 169 Working with Permissions 169 Assigning Permissions 170 Directory Permissions 171 Altering File Permissions with chmod 172 File Permissions with chgrp 173 Changing File Permissions with chown 173 Understanding Set User ID and Set Group ID Permissions 173 Working with Files 175 Creating a File with touch 175 Creating a Directory with mkdir 175 Deleting a Directory with rmdir 176 Deleting a File or Directory with rm 177 Moving or Renaming a File with mv 177 Copying a File with cp 178 Displaying the Contents of a File with cat 179 Displaying the Contents of a File with less 179 Using Wildcards and Regular Expressions 179 Working as Root 180 Understanding and Fixing sudo 180 Creating Users 183 Deleting Users 184 Shutting Down the System 184 Rebooting the System 185 Commonly Used Commands and Programs 185 References 186 11 Command-Line Master Class 187 Why Use the Command Line? 188 Using Basic Commands 189 Printing the Contents of a File with cat 190 Changing Directories with cd 191 Changing File Access Permissions with chmod 193 Copying Files with cp 193 Printing Disk Usage with du 194 Finding Files by Searching with find 195 Searches for a String in Input with grep 197 Paging Through Output with less 198 Creating Links Between Files with ln 200 Finding Files from an Index with locate 202 Listing Files in the Current Directory with ls 202 Reading Manual Pages with man 204 Making Directories with mkdir 205 Moving Files with mv 205 Listing Processes with ps 206 Deleting Files and Directories with rm 206 Printing the Last Lines of a File with tail 207 Printing Resource Usage with top 207 Using echo 209 Printing the Location of a Command with which 210 Redirecting Output and Input 210 stdin, stdout, sdterr, and Redirection 211 Comparing Files 212 Finding Differences in Files with diff 213 Finding Similarities in Files with comm 213 Combining Commands 214 Pipes 214 Running One or More Tasks in the Background 216 Combining Commands with Boolean Operators 216 Running Separate Commands in Sequence 217 Using Environment Variables 217 Using Common Text Editors 220 Working with nano 222 Working with vi 222 Working with emacs 223 Working with sed and awk 225 Working with Compressed Files 227 Using Multiple Terminals with byobu 227 Polite System Reset using REISUB 229 Limiting Resource Use 230 References 231 12 Managing Users 233 User Accounts 233 The Super User/Root User 234 User IDs and Group IDs 236 File Permissions 236 Managing Groups 237 Group Listing 237 Group Management Tools 238 Managing Users 240 User Management Tools 240 Adding New Users 242 Monitoring User Activity on the System 246 Managing Passwords 246 System Password Policy 246 The Password File 247 Shadow Passwords 248 Managing Password Security for Users 250 Changing Passwords in a Batch 251 Granting System Administrator Privileges to Regular Users 251 Temporarily Changing User Identity with the su Command 251 Granting Root Privileges on Occasion: The sudo Command 253 Disk Quotas 256 Implementing Quotas 257 Manually Configuring Quotas 257 Related

ADMINISTRATION DE SYSTÈMES INFORMATIQUES (GESTION DE SYSTÈMES INFORMATIQUES)

LINUX (SYSTÈME D'EXPLOITATION)

RÉSEAUX D'ORDINATEURS + RÉSEAUX INFORMATIQUES

Matthew Hlemke with Andrew Hudson and Paul Hudson.

Andrew Hudson

Matthew Helmke

Paul Hudson

Electronic name

[Book]

Y