最新rhce6.0-ch09 RHCSA-Level System Administration Tasks

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1、CertPrs8/RHCSA/RHCERedHatLinuxCertificationStudyGuide(ExamN0-201)/Jang/176565-7/Chapter1/BlindFolioPB9RHCSA-LevelSystemAdministrationTasksCERTIFICATIONOBJECTIVES9.01ConfigureAccesswithVNC9.01LocalLogFileAnalysis9.01ElementarySystemAdministration✓Two-MinuteDrillCommandsQ&ASelfTest9.01AutomateSyst

2、emAdministration:cronandatCopyright©2011byTheMcGraw-HillCompanies09-ch09.indd14/27/20113:38:19AMCertPrs8/RHCSA/RHCERedHatLinuxCertificationStudyGuide(ExamN0-201)/Jang/176565-7/Chapter12Chapter9:RHCSA-LevelSystemAdministrationTaskssthefinalchapterrelatedtotheRHCSAexam,thiscoversthosefunctionalsys

3、temadministrationtasksnotalreadycoveredinotherchapters.OnepartofremoteAaccessnotalreadycoveredisbasedontheGUI-basedsharingenabledthroughVirtualNetworkComputing(VNC).Thesystemadministrationtasksdiscussedinthischapterincludeprocessmanagementandtheuseofarchives.Furthermore,thischapteralsohelpsyouw

4、orkwithrepetitivesystemadministrationtasks.Someofithappenswhenyouwanttohavea“life,”morewhenyou’dratherbeasleep.Inthischapter,you’lllearnhowtoschedulebothone-timeandperiodicexecutionofjobs.That’smadepossiblewiththecronandatdaemons.Inthiscase,“at”isnotapreposition,butaservicethatmonitorsasystemfo

5、rone-timescheduledjobs.Inasimilarfashion,cronisaservicethatmonitorsasystemforregularlyscheduledjobs.Whentroubleshooting,systemloggingoftenprovidesthecluesthatyouneedtosolvealotofproblems.Thefocusinthischapterislocallogging;thenetworkloggingcapabilitiesofthersyslogserviceisanRHCEskillcoveredinCh

6、apter17.INSIDETHEEXAMRemoteAccesslowingRHCSAobjectives.ThefirstoftheseobjectivesinvolvesfundamentalcommandLinuxadministratorsarefrequentlyrespon-skills:sibleforavarietyofsystemsinremoteloca-tions.Youreviewedclientoptionsassociated■Archive,compress,unpack,andun-withSSHinChapter2.Inthischapter,yo

7、u’llcompressfilesusingtar,star,gzip,andlearnabouttheVNCpartofthisobjective:bzip2■AccessremotesystemsusingSSHTheseotherobjectivesaremorecloselyandVNCrelatedtosystemadministration:■IdentifyCPU/memoryintensiveSystemAdministrationproc