RH系統(tǒng)管理系統(tǒng)管理工具

1、UNIT 6:Objectives Upon completionof this unit you should be able to: Perform task automation with at and cron Configure system logging Monitor system resources and activities Perform backup and restoreUNIT 6:agenda Task automation System logging System monitoring Bakcup and restore自動(dòng)化任務(wù) Red hat linu

2、x provides three facilities At execute a task at a specific time Cron execute tasks at scheduled intervals Anacron run tasks after 規(guī)定prescribed intervals have passwdUsing at 適用于計(jì)劃一次性任務(wù) Use cron instead for recuring events Use atq,atrm to manage jobs Atq lists pending jobs(and job ids) atq Atrm delet

3、es pending job by job id atrm jobid Example: at time xxxx-xx-xx $at 6:00 At mail joe /dev/nst0Remote backups Dump and tar can use rmt(remote tape mgr) Dump -0uf joesvr:/dev/nst0 /home Use userhost:path format to specify the remote use,host,and device. Dump can use ssh for secure backups when rsh env

4、ionment variable is set to ssh i.e, ($RSH=ssh)Other backup software Higher-level applications for tape backup include: Amanda Highly-scalable command-line client-server archiver included with red hat linux Commercial applications Arkeia,bru,veritas,etcEnd of unit 6 Summary Configuring printing Task

5、automation Configuring system logging Performing system monitoring Backup and restoreUsing at 適用于計(jì)劃一次性任務(wù) Use cron instead for recuring events Use atq,atrm to manage jobs Atq lists pending jobs(and job ids) atq Atrm deletes pending job by job id atrm jobid Example: at time xxxx-xx-xx $at 6:00 At mail joe /dev/nst0Other backup software Higher-level applications for tape backup include: Amanda Highly-scalable command-line client-serv