Linux System Administration Recipes A Problem-Solution Approach

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■ INDEX■KKerberoswith Apache for securing web sites, 169—170authenticating LDAP with, 32—35client setup, 24—26database setup, 24—26databases, backing up, 103—104Kerberizing ssh setup, 143—144MIT version of, 22overview, 21replication, setting up, 47—49server installation and configuration, 22—24setting/enforcing password policy with,144—146workings of, 21—22Kerberos SSH and logonsetting up, 26—28troubleshooting, 28key distribution center (KDC), 21—22keyboard keys, linking to programs, 204—205keychains, managing SSH keys with, 137—138keymaps, changing in X, 203—204keyword shortcuts, bash, 171—174Knoppix, 113krb5-kdc.schema, 30KrbAuthRealm, 170■Llabeling disks with tune2fs command, 122labels, adding to log messages (Subversion), 11laptop backups, anacron for, 112—113LDAP (Lightweight Directory Access Protocol)adding custom fields to, 57—58authenticating with Kerberos, 32—35client, setting up, 38—40commands, 40database, populating, 35—38databases, backing up, 103—104defining nodes in, 86—88ldapadd command, 41ldapdelete, 42ldapmodify command, 41—42ldapsearch command, 40—41new users, adding with scripts, 49—52OpenSSL and, 29—30overview, 28—29querying with scripts, 55—57scripts, modifying/deleting entries with, 52—55server setup, 30—32slave server. See slave LDAP serverLDIF format, 49less text pager, 185—187LESSOPEN environment variable, 186lesspipe helper application, 187Limoncelli, Thomas A., 233locate command, 179lock-tables option, 102logginglog data, plotting, 214log messages, adding labels to (Subversion),11with syslog, 226with syslogd, 223—228loginremote with gdm, 209—210remote with ssh -X, 208—209remote with VNC, 210—211lpadmin, automating printer setup with, 205—207ltrace, library calls and, 221—223■MMacs, connecting to NFS servers, 60magicrescue, 116-maxdepth option (find command ), 179mdadm, managing RAID with, 129—130MediaWiki, installing, 3—7, 100MEMORY tables, 102merging repositories (Subversion), 16Mirrored RAID, 95mirroring (RAID arrays), 128—129MIT version of Kerberos, 22mod_auth_kerb module, 169mod_authnz_ldap module, 169modules, Apache2, 160—162monitoring, centralized setup with Nagios, 63—66more text pager, 185-mount option (find command ), 179MyISAM tables, 102MySQLdatabases, backing up, 102—103mysqldump command, 102mysqlhotcopy utility, 102256Download at WoweBook.Com
■ INDEX■NNagiosadding hosts to, 67alerts, setting up, 69—70commands, defining, 71enabling external commands in, 76—77plug-ins, writing, 71—73setting up centralized monitoring with, 63—66setting up NRPE plug-in for, 73—76using hostgroups and services in, 68—69using templates in, 67—68network total disk size, calculating, 96—99new users, adding to LDAP with scripts, 49—52NFS (Network File <strong>System</strong>)automount and, 59—60performance, improving, 60—61server, connecting Macs to, 60NoAuth sections (RT), 241nodesdefining in LDAP, 86—88setting up in Puppet, 85—86-noleaf option (find command), 179NOPASSWD tag, 150notebooks for documentation, 3NRPE plug-in, 73—76■Oobject identifier (OID), 58■Ppackages, Puppet and, 84pam_cracklib (PAM module), 146—147partitions, resizing on the fly, 123—128password policychecking, 147—148setting/enforcing with Kerberos, 144—146setting/enforcing with pam_cracklib, 146—147password usage options (sudo), 149—150Perlmanipulating file contents with, 193—195modules from CPAN, 18, 247—248perl-ldap, 49SWITCH statements and, 252syntax notes, 251—252useful modules, 248—251variables in, 7—9pkill tool, 192plotting log data, 226—229plug-ins, writing (Nagios), 71—73PostScript files, 208principal, defined (Kerberos), 24printingautomating printer setup with lpadmin,205—207readable text files, 207—208to screen for debugging, 9Pro Nagios 2.0 (Apress), 63programmable completion with bash, 176—178programs, linking keyboard keys to, 204—205PROMPT_COMMAND setting, 2ps -A, running, 216Pulling Strings with Puppet-ConfigurationManagement Made Easy (Apress), 83Puppetdefining nodes in LDAP, 86—88managing various types with, 83—84Pulling Strings with Puppet-ConfigurationManagement Made Easy (Apress), 83Puppet and resource dependencies,creating, 83setting up, 79—83setting up nodes in, 85—86using Facter and templates, 88—91■Qquerying LDAP with scripts, 55—57■Rrepositories (Subversion)branching, 15—16dividing, 14—15merging, 16Request Tracker (RT) ticketing system. See RT(Request Tracker) ticketing systemrequire dependency (Puppet), 83resizing partitions on the fly, 123—128resource dependencies (Puppet), 83resources (Puppet), 79restoration of data with rsync, 104—108rights system (RT), 238—239root setup, synchronizing, 78—79RRDTool, 226RSA keys, 135rsnapshot, 130—132rsync257Download at WoweBook.Com
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Contents■About the Author .......
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■ CONTENTS3-7. Writing a Nagios P
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■ CONTENTS■Chapter 8: Using the
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■ CONTENTSAbout the Author■Juli
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■ CONTENTSAcknowledgmentsMany tha
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■ CONTENTSIntroductionThis book i
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■ INTRODUCTIONDownloading the Cod
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C H A P T E R 1■ ■ ■Saving Yo
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CHAPTER 1 ■ SAVING YOURSELF EFFOR
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C H A P T E R 2■ ■ ■Centraliz
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CHAPTER 2 ■ CENTRALIZING YOUR NET
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C H A P T E R 3■ ■ ■Monitorin
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CHAPTER 3 ■ MONITORING AND UPDATI
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C H A P T E R 4■ ■ ■Taking Ba
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CHAPTER 4 ■ TAKING BACKUPS AND MA
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C H A P T E R 5■ ■ ■Working w
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CHAPTER 5 ■ WORKING WITH FILESYST
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C H A P T E R 6■ ■ ■Securing
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CHAPTER 6 ■ SECURING YOUR SYSTEMS
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CHAPTER 7 ■ WORKING WITH APACHEOn
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CHAPTER 7 ■ WORKING WITH APACHEdi
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CHAPTER 7 ■ WORKING WITH APACHE4.
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CHAPTER 7 ■ WORKING WITH APACHE
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CHAPTER 7 ■ WORKING WITH APACHEAl
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CHAPTER 7 ■ WORKING WITH APACHE
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C H A P T E R 8■ ■ ■Making Be
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CHAPTER 8 ■ USING THE COMMAND LIN
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CHAPTER 9 ■ WORKING WITH TEXT IN
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C H A P T E R 10■ ■ ■Things G
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Page 233 and 234: C H A P T E R 11■ ■ ■Tracking
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Page 251 and 252: C H A P T E R 12■ ■ ■Managing
Page 253 and 254: CHAPTER 12 ■ MANAGING TIME AND PE
Page 267 and 268: APPENDIX■ ■ ■Perl TipsSee rec
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Page 271 and 272: APPENDIX ■ PERL TIPSPerl Syntax N
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Page 275: ■ INDEXenscript option (printing)
Page 279 and 280: ■ INDEXsyslogcentralized logging
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