10ThingsTheLinuxOperationandMaintenanceEngineerNeedToMasterL
earningLinuxsystem,wecanuseRedHatorCentOS,especiallyCen
tOSisthemostusedsystemintheenterprise,ofcourse,therew
illbeotherversions,butthetwoversionsarebrothers,nodist
inctionbetweenthem,wecanalsolookatSUSE,somecompaniesal
soliketouse.Forpeoplewhojustgettingstartedorreadytoo
perateandmaintenance,wehavesummarizedthefollowing10techn
icalcommandsandrelatedtools:1,LinuxsystembasiccommandThis
isthebasisofoperatingLinux,youcouldhttp://mytestvps.com/
vps-tutorials/common-use-linux-command-for-vps-maintenance.htmlle
arnthosecommandonnetworkorfrombook.2,networkserviceThes
ervicehasmanykinds,eachcompanywillusedifferent,butbasic
servicesyoumustknow,suchasFTP,DNS,samba,mail,thelamp
andLNMPismustbeskilled,Imeannotonlyknowhowtobuild,b
utalsobeveryfamiliarwiththeconfiguration,becausethecomp
any’smostcriticalisawebserver,soyoumustbeveryfamiliar
withnginxandApache,somecompaniesalsousetomcat,youmayn
eedtolearnthis.Actuallyyoudonothavetoworrytoomuch,ge
neralenvironmenthasbeensetup,eveniftherearenewservero
rletyourectification,thecompanywillhavecorrespondingdocu
mentforyourreference.Thisisonlythe2basis,it’salsothen
ecessaryconditions,thenextistherealtooltograsp.3,shell
scriptandanotherscriptpythonperlphpTherearemanyinstructi
onsonnetwork,youcouldalsovisitofficialwebsitetolearnth
eirdocuments4,sedandawktoolItwillbemorepowerfultowork
withregularexpression.5,textmanagecommandsort,tr,cut,pa
ste,uniq,tee6,database,thefirstchoiceisMySQL,mostofthe
Linuxuserusethis,notsqlserverandoracle.7,firewallThisis
alsoadifficultwork.IfyoulearnedCCNA,iptablesalsohasNA
Ttable,theirprincipleisthesame,andtheFILTERtableisthe
mostused,anyway,itisdifficulttosayeasy.8,monitoringtoo
ls,very,veryimportant,mypersonaladvice,it’sbesttolearn
thethree,cacti,Nagios,zibbix.enterprisemostusedshouldbe
theNagiosandZABBIX,butNagiosisdifficult,becauseitwilli
nvolvewritescriptsandautomaticmonitoring.9,clustersandhot
standby.Thisisveryimportant,youmustunderstandit,butthe
companywillnotletnewbietotouchit,therearealotofclus
tertools,andthebesteasytolearnisLVS,itisnecessaryto
learnnginxcluster,reverseproxy,andhotstandby,infact,it’
snoteasytolearnandunderstandthewholeprocess.10,databac
kup,therearealotoftools,butatleastyouneedunderstandt
heprincipleofraid,especiallytheenterprisemostcommonlyuse
d1+0or0+1,therearealotofbackuptools,suchastar,d
ump,Rsync.10pointsisenoughforyou,becausesometechnologyw
illbemoredifficulttolearn,suchastheApacheandnginx,sys
temtuningandoptimizationservicesandprogram,tolearnall,y
oumayneedtospendatleast3months,Isuggestyoushouldstar
tfromlearningshell,afterwork,learnanotherscriptinglangua
ge,thatwillbegood.Linuxoperationandmaintenanceengineersn
eedtomasterthetools,infact,therearemanytoolsformasters,ratherthanwindowsorUbuntugraphicaltools,idonotsuggestinstallingagraphicalinterfacetolearnLunix,sovirtualmachineneednoteattoomuchmemory. |
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