Automating Linux and Unix System Administration Second Edition phần 10 potx

Automating Linux and Unix System Administration Second Edition phần 10 potx

Automating Linux and Unix System Administration Second Edition phần 10 potx

... repetition operators (and others support XwXy instead). The acnal command can also be found on many systems. If you find yourself limited by the standard cnal command and the differences between ... (central host), 103 105 , 161 greediness, 386 grep command, 396 grep program, 386–389 group IDs, NFS and, 233 H hacks, postinstall script and, 128 hemingway, 338 homogenizing systems,...
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Automating Linux and Unix System Administration Second Edition phần 1 potx

Automating Linux and Unix System Administration Second Edition phần 1 potx

... tasks that you might never have considered automating. Automating Linux and Unix System Administration Second Edition Nate Campi and Kirk Bauer INTRODUCTION xxiv Downloading the Code The ... Automating Linux and Unix System Administration, Second Edition Copyright © 2009 by Nate Campi, Kirk Bauer All rights reserved. ... command oq`k)g is executed. xv Abou...
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Automating Linux and Unix System Administration Second Edition phần 9 potx

Automating Linux and Unix System Administration Second Edition phần 9 potx

... with Perl as standard software. However, most administrators find that adding Perl to all of their UNIX systems is well worth the effort, and it comes preinstalled on all major Linux distributions. ... very popular in the system administration community and may very well be the most popular scripting language in use today. The major disadvantage is that some com- mercial UNIX...
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Automating Linux and Unix System Administration Second Edition phần 2 pps

Automating Linux and Unix System Administration Second Edition phần 2 pps

... each system by logging in and manually run- ning the _b]cajp command. Cfengine follows a good theory in system- administration automation: the more ways you can initiate changes to a system, ... configuration file. You can choose from approximately 100 possible commands in this section. These commands allow you to check and modify text files (and, in a few cases, binary files)....
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Automating Linux and Unix System Administration Second Edition phần 3 ppsx

Automating Linux and Unix System Administration Second Edition phần 3 ppsx

... master, system upgrade, and patching procedures is easy before the systems and procedures are put into use. Once you’ve been deploying and updating systems using automated means, reorganizing and ... odahh_kii]j`o6 ]hh66 +qon+^ej+n`]pa)ojpl-peiakqp9/, na`d]p*Dn,.[M-66 +qon+hk_]h+o^ej+hkc[l]_g]cao^]_gcnkqj`9pnqa On all systems, the n`]pa command is execut...
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Automating Linux and Unix System Administration Second Edition phần 4 pptx

Automating Linux and Unix System Administration Second Edition phần 4 pptx

... AUTOMATING A NEW SYSTEM INFRASTRUCTURE 163 Internal NTP Masters We’ll use our cfengine master host (goldmaster.campin.net) and our Red Hat Kickstart system (rhmaster.campin.net) as the two systems ... to choose Linux over Solaris systems to handle this role. You should find it quite easy to modify this procedure to use one or more Solaris systems to synchronize off site instead, a...
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Automating Linux and Unix System Administration Second Edition phần 5 docx

Automating Linux and Unix System Administration Second Edition phần 5 docx

... 5. ฀฀฀฀฀฀฀฀฀ +ap_+]qpk*i]opan and +ap_+]qpk*dkia. On Solaris, the files are +ap_+]qpk[i]opan and +ap_+]qpk[dkia. The ]qpk*i]opan and ]qpk[ i]opan files map filesystem paths to files that contain the commands to ... router at -5.*-24*-*- that handles routing, Network Address Translation (NAT), and DNS- caching services. After we get DNS up...
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Automating Linux and Unix System Administration Second Edition phần 6 pps

Automating Linux and Unix System Administration Second Edition phần 6 pps

... applications and data from mul- tiple systems. You can modify the files on any system, and the changes become instantly available on all other systems. Problems with network filesystems begin ... Network filesystems do not operate at 100 percent efficiency when these prob- lems occur. In many cases, the network filesystem might not work at all and could even hang the UNIX /Linux...
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Automating Linux and Unix System Administration Second Edition phần 7 pdf

Automating Linux and Unix System Administration Second Edition phần 7 pdf

... has bugs; and all manner of issues crop up that cause hosts and applications to fail. System and service monitoring is automation’s com- panion tool, used to notify us when systems and applications ... chapter, and we believe that our choices will scale with your environment as it grows. ฀have chosen Nagios for our system and service monitoring system. Nagios is flex- ibl...
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Automating Linux and Unix System Administration Second Edition phần 8 pptx

Automating Linux and Unix System Administration Second Edition phần 8 pptx

... COURSE Most system administrators are familiar with the `ebb and l]p_d commands. The `ebb command is used to compare text files line by line and show the differences. The l]p_d command takes a ... of state on the system, relays the state changes on to other systems via TCP or multicast UDP, listens for and gathers the state of other cikj` daemons in the local cluster, and answe...
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