Automating System Administration with Perl

David N. Blank-Edelman is the Director of Technology at the Northeastern University College of Computer and Information Science and the author of the O'Reilly book Perl for System Administration (with a second edition due out very soon). He has spent the last 24+ years as a system/network administrator in large multi- platform environments, including Brandeis University, Cambridge Technology Group, and the MIT Media Laboratory. He was the program chair of the LISA 2005 conference and one of the LISA 2006 Invited Talks co-chairs.

If you do systems administration work of any kind, you have to deal with the growing complexity of your environment and increasing demands on your time. Automating System Administration with Perl, Second Edition, not only offers you the right tools for your job, but also suggests the best way to approach specific problems and to securely automate recurring tasks.Updated and expanded to cover the latest operating systems, technologies, and Perl modules, this edition of the "Otter Book" will help you:Manage user accountsMonitor filesystems and processesWork with configuration files in important formats such as XML and YAMLAdminister databases, including MySQL, MS-SQL, and Oracle with DBIWork with directory services like LDAP and Active DirectoryScript email protocols and spam controlEffectively create, handle, and analyze log filesAdminister network name and configuration services, including NIS, DNS and DHCPMaintain, monitor, and map network services, using technologies and tools such as SNMP, nmap, libpcap, GraphViz and RRDtoolImprove filesystem, process, and network securityThis edition includes additional appendixes to get you up to speed on technologies such as XML/XPath, LDAP, SNMP, and SQL. With this book in hand and Perl in your toolbox, you can do more with less -- fewer resources, less effort, and far less hassle.

InhaltsverzeichnisChapter 1 IntroductionAutomation Is a MustHow Perl Can Help YouThis Book Will Show You HowWhat You NeedSome Notes About the Perl Versions Used for This BookSome Notes About Using Vista with the Code in This BookLocating and Installing ModulesIt s Not Easy Being OmnipotentReferences for More InformationChapter 2 FilesystemsPerl to the RescueFilesystem DifferencesWalking or Traversing the Filesystem by HandWalking the Filesystem Using the File::Find Module Walking the Filesystem Using the File::Find::Rule ModuleManipulating Disk QuotasEditing NTFS Quotas Under WindowsQuerying Filesystem UsageModule Information for This ChapterReferences for More InformationChapter 3 User AccountsUnix User IdentitiesWindows-Based Operating System User IdentitiesBuilding an Account System to Manage UsersModule Information for This ChapterReferences for More InformationChapter 4 User ActivityProcess ManagementFile and Network OperationsModule Information for This ChapterReferences for More InformationChapter 5 TCP/IP Name and ConfigurationServicesHost FilesNIS, NIS+, and WINSDomain Name Service (DNS)DHCPModule Information for This ChapterReferences for More InformationChapter 6 Working with Configuration FilesConfiguration File FormatsAll-in-One ModulesAdvanced Configuration Storage MechanismsModule Information for This ChapterReferences for More InformationChapter 7 SQL Database AdministrationInteracting with a SQL Server from PerlUsing the DBI FrameworkUsing ODBC from Within DBIServer DocumentationDatabase LoginsMonitoring Space Usage on a Database ServerModule Information for This ChapterReferences for More InformationChapter 8 EmailSending MailCommon Mistakes in Sending EmailFetching MailProcessing MailModule Information for This ChapterReferences for More InformationChapter 9 Directory ServicesWhat s a Directory?Finger: A Simple Directory ServiceThe WHOIS Directory ServiceLDAP: A Sophisticated Directory ServiceActive Directory Service InterfacesModule Information for This ChapterReferences for More InformationChapter 10 Log FilesReading Text LogsReading Binary Log FilesStructure of Log File DataDealing with Log File InformationWriting Your Own Log FilesModule Information for This ChapterReferences for More InformationChapter 11 SecurityNoticing Unexpected or Unauthorized ChangesNoticing Suspicious ActivitiesDanger on the Wire, or Perl Saves the DayPreventing Suspicious ActivitiesModule Information for This ChapterReferences for More InformationChapter 12 SNMPUsing SNMP from PerlModule Information for This ChapterReferences for More InformationChapter 13 Network Mapping and MonitoringNetwork MappingPresenting the InformationMonitoring FrameworksWhat s Left?Module Information for This ChapterReferences for More InformationChapter 14 Experiential LearningPlaying with TimelinesPlaying with GeocodingPlaying with an MP3 CollectionOne Final ExplorationRemember to PlayModule Information for This ChapterSource Material for This ChapterAppendix The Eight-Minute XML TutorialXML Is a Markup LanguageXML Is PickyTwo Key XML TermsLeftoversReferences for More InformationAppendix The 10-Minute XPath TutorialXPath Basic ConceptsReferences for More InformationAppendix The 10-Minute LDAP TutorialLDAP Data OrganizationAppendix The 15-Minute SQL TutorialCreating/Deleting Databases and TablesInserting Data into a TableQuerying InformationChanging Table InformationRelating Tables to Each OtherSQL StragglersAppendix The Five-Minute RCS TutorialReferences for More InformationAppendix The Two-Minute VBScript-to-Perl TutorialTranslation TacticsReferences for More InformationAppendix The 20-Minute SNMP TutorialSNMP in PracticeColophon