book

A Practical Guide to Fedora™ and Red Hat® Enterprise Linux®, Seventh Edition

by Mark G. Sobell

December 2013

Beginner

1300 pages

43h 54m

English

Pearson

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This Book Includes a Fedora 19 (Schrödinger’s Cat) DVDFeatures of This BookKey Topics Covered in This BookSupplementsThanks

The History of UNIX and GNU–LinuxOverview of LinuxChoosing an Operating SystemChapter SummaryExercises
Conventions Used in This BookLPI and CompTIA Certification IconsMore InformationPlanning the InstallationThe Installation ProcessDownloading an Installation Image File and Writing to/Burning the Installation MediumGathering Information About the SystemChapter SummaryExercisesAdvanced Exercises
The New Anaconda InstallerRunning a Fedora Live SessionInstalling Fedora/RHELInstallation TasksChapter SummaryExercisesAdvanced Exercises
Curbing Your Power (Superuser/root Privileges)Logging In on the SystemThe GNOME 3 Standard and Classic DesktopsWorking with the DesktopUsing the Nautilus File ManagerThe Settings WindowGetting HelpUpdating, Installing, and Removing Software PackagesWorking from the Command LineMore About Logging In and PasswordsChapter SummaryExercisesAdvanced Exercises
Special CharactersOrdinary Files and Directory FilesThe Command LineStandard Input and Standard OutputRunning a Command in the BackgroundFilename Generation/Pathname ExpansionBuiltinsChapter SummaryExercisesAdvanced Exercises
The Hierarchical FilesystemOrdinary Files and Directory FilesPathnamesWorking with DirectoriesAccess PermissionsACLs: Access Control ListsLinksChapter SummaryExercisesAdvanced Exercises
Basic UtilitiesWorking with FilesCompressing and Archiving FilesDisplaying User and System InformationMiscellaneous UtilitiesEditing FilesChapter SummaryExercisesAdvanced Exercises
Introduction to NetworkingTypes of Networks and How They WorkCommunicate over a NetworkNetwork UtilitiesDistributed ComputingWWW: World Wide WebChapter SummaryExercisesAdvanced Exercises
BackgroundStartup FilesCommands That Are SymbolsRedirecting Standard ErrorWriting and Executing a Shell ScriptControl Operators: Separate and Group CommandsJob ControlManipulating the Directory StackParameters and VariablesSpecial CharactersLocaleTimeProcessesHistoryAliasesFunctionsControlling bash: Features and OptionsProcessing the Command LineChapter SummaryExercisesAdvanced Exercises
Running Commands with root PrivilegesThe systemd init DaemonSysVinit (rc) Scripts: Start and Stop System ServicesSystem OperationSystem Administration ToolsSetting Up a ServerDHCP: Configures Network Interfacesnsswitch.conf: Which Service to Look at FirstGetting HelpChapter SummaryExercisesAdvanced Exercises
Important Files and DirectoriesFile TypesFilesystemsThe XFS FilesystemChapter SummaryExercisesAdvanced Exercises
IntroductionJumpStart: Installing and Removing Software Packages Using yumFinding the Package That Holds an Application or File You Needyum: Keeps the System Up-to-DateBitTorrentRPM: The RPM Package ManagerInstalling Non-rpm SoftwareKeeping Software Up-to-Datecurl: Downloads Files NoninteractivelyChapter SummaryExercisesAdvanced Exercises
IntroductionThe System Configures a Local Printer AutomaticallyJumpStart I: Configuring a Printer Using system-config-printerJumpStart II: Setting Up a Local or Remote PrinterWorking with the CUPS Web InterfaceConfiguring PrintersTraditional UNIX PrintingPrinting from WindowsPrinting to WindowsChapter SummaryExercisesAdvanced Exercises
Downloading, Installing, and Prepping the Kernel Source CodeConfiguring and Compiling the Linux KernelInstalling the Kernel, Modules, and Associated FilesGRUB: The Linux Boot Loaderdmesg: Displays Kernel MessagesChapter SummaryExercisesAdvanced Exercises
Configuring User and Group AccountsBacking Up FilesScheduling TasksSystem ReportsMaintaining the SystemChapter SummaryExercisesAdvanced Exercises
More InformationSetting Up the HardwareConfiguring the SystemsNetworkManager: Configures Network ConnectionsSetting Up ServersIntroduction to CactiChapter SummaryExercisesAdvanced Exercises
VMs (Virtual Machines)QEMU/KVMVMware Player: Installing Fedora on VMwareCloud ComputingChapter SummaryExercisesAdvanced Exercises
Introduction to OpenSSHRunning the ssh, scp, and sftp OpenSSH ClientsSetting Up an OpenSSH Server (sshd)TroubleshootingTunneling/Port ForwardingChapter SummaryExercisesAdvanced Exercises
Introduction to FTPRunning the ftp and sftp FTP ClientsSetting Up an FTP Server (vsftpd)Chapter SummaryExercisesAdvanced Exercises
Introduction to sendmailSetting Up a sendmail Mail ServerJumpStart I: Configuring sendmail on a ClientJumpStart II: Configuring sendmail on a ServerWorking with sendmail MessagesConfiguring sendmailSpamAssassinAdditional Email ToolsAuthenticated RelayingChapter SummaryExercisesAdvanced Exercises
Introduction to NISRunning an NIS ClientSetting Up an NIS ServerLDAPSetting Up an LDAP ServerTools for Working with LDAPChapter SummaryExercisesAdvanced Exercises
Introduction to NFSRunning an NFS ClientSetting Up an NFS Serverautomount: Mounts Directory Hierarchies on DemandChapter SummaryExercisesAdvanced Exercises
Introduction to SambaRunning Samba ClientsSetting Up a Samba ServerTroubleshootingChapter SummaryExercisesAdvanced Exercises
Introduction to DNSSetting Up a DNS ServerConfiguring a DNS ServerSetting Up Different Types of DNS ServersChapter SummaryExercisesAdvanced Exercises
The firewalld ServiceJumpStart: Building a Firewall Using firewall-configfirewall-config: The Firewall Configuration Windowfirewall-cmd: Controlling firewalld from the Command LineIntroduction to iptablesBuilding a Set of Rules Using iptablesCopying Rules to and from the Kernelsystem-config-firewall: Generates a Set of RulesSharing an Internet Connection Using NATChapter SummaryExercisesAdvanced Exercises
IntroductionRunning an Apache Web ServerFilesystem LayoutConfiguration DirectivesAdvanced ConfigurationTroubleshootingModuleswebalizer: Analyzes Web TrafficMRTG: Monitors Traffic LoadsError CodesChapter SummaryExercisesAdvanced Exercises
Control StructuresFile DescriptorsParametersVariablesBuiltin CommandsExpressionsImplicit Command-Line ContinuationShell ProgramsChapter SummaryExercisesAdvanced Exercises
IntroductionScalar Variables, Lists, and DictionariesControl StructuresReading from and Writing to FilesRegular ExpressionsDefining a FunctionUsing LibrariesLambda FunctionsList ComprehensionsChapter SummaryExercisesAdvanced Exercises
HistoryNotesInstalling a MariaDB Server and ClientSetting Up MariaDBExamplesChapter SummaryExercisesAdvanced Exercises
CharactersDelimitersSimple StringsSpecial CharactersRulesBracketing ExpressionsThe Replacement StringExtended Regular ExpressionsAppendix Summary
Solving a ProblemFinding Linux-Related InformationSpecifying a Terminal
EncryptionFile SecurityEmail SecurityNetwork SecurityHost SecurityTutorial: Using GPG to Secure a FileSecurity ResourcesAppendix Summary
Using apt-get to Install, Remove, and Update PackagesUsing apt-get to Upgrade the SystemOther apt-get CommandsRepositoriessources.list: Specifies Repositories for apt-get to Search
More InformationLinux EssentialsCertification Exam 1 Objectives: LX0-101Certification Exam 2 Objectives: LX0-102

Content preview from A Practical Guide to Fedora™ and Red Hat® Enterprise Linux®, Seventh Edition

C. Security Including GPG

In This Appendix

Remote Access Security

Viruses and Worms

Physical Security

Tutorial: Using GPG to Secure a File

Security Resources

Security is a major part of the foundation of any system that is not totally cut off from other machines and users. Some aspects of security have a place even on isolated machines. Examples of these measures include periodic system backups, BIOS or power-on passwords, and self-locking screensavers.

A system that is connected to the outside world requires other mechanisms to secure it: tools to check files (tripwire), audit tools (tiger/cops), secure access methods (kerberos/ssh), services that monitor ...