通過 rsync 做日誌log備份
1、拓撲如下:
2、通過rsync日誌備份
1>ssh 免密鑰登陸
確定發起方，從log-back-server_10.1.1.1 為中心發起方。因此，要實現從log-server到各主機之前的 免密登陸。在log-server 主機上，cd ~ && ssh-keygen -t rsa ，全部按空格結束。ls一下
將id_rsa.pub 全部傳到其它主機上面。
[[email protected] ~]# scp -p ~/.ssh/id_rsa.pub [email protected]:/root/.ssh/authorized_keys
[[email protected] ~]# scp -p ~/.ssh/id_rsa.pub [email protected]
[[email protected] ~]# scp -p ~/.ssh/id_rsa.pub [email protected]:/root/.ssh/authorized_keys
2>在每臺主機上安裝rsync，並且使用腳本做ssh免密測試
#! /bin/bash
#
for host in {1..xx}
do
ssh 10.1.1.$host
action=`echo &?`
if [ $action == 0 ];then
echo "the $host is ok" >> a.txt
else
echo "the $host is not ok" >> a.txt
fi
done
3>計劃任務
可以針對不同的主機，/ 目錄下做不同的文件夾存放不同主機的日誌。
10.1.1.1-log 10.1.1.2-log 10.1.1.3-log
[[email protected] /]# mkdir 10.1.1.1-log && mkdir 10.1.1.2-log && mkdir 10.1.1.3-log
[[email protected] /]# ls
10.1.1.1-log bin dev lib media net root selinux tmp
10.1.1.2-log boot etc lib64 misc opt sbin srv usr
10.1.1.3-log cgroup home lost+found mnt proc script sys var
[[email protected] ~]# mkdir log-back-script
[[email protected] ~]# cd log-back-script/
[[email protected] log-back-script]# touch backup.sh
[[email protected] log-back-script]# pwd
/root/log-back-script
備份腳本:(腳本比較簡單，只是實現個基礎內容而已)
#! /bin/bash
# messages backup
rsync -avz /var/log/messages* 10.1.1.1:/10.1.1.1-log
date && echo "10.1.1.1 is ok" >> back_echo_history
rsync -avz /var/log/messages* 10.1.1.2:/10.1.1.2-log
date && echo "10.1.1.2 backup is ok" >> back_echo_history
rsync -avz /var/log/messages* 10.1.1.3:/10.1.1.3-log
date && echo "10.1.1.3 backup is ok" >> back_echo_history
exit
開始任務計劃:
[[email protected] log-back-script]# crontab -e
其實以上還可以增強很多內容，有想法提出來一起討論。
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本文出自 “天馬行空” 博客，請務必保留此出處http://keep11.blog.51cto.com/1443840/1943861
通過 rsync 做日誌log備份