具体要求：
1，所有服务器(定时任务，开机自启动，日常脚本目录，防火墙配置文件)，tar包到/backup目录，再推送到备份服务器
2，web服务器站点tar包到/backup目录(假定为：/var/www/html/)，再推送到备份服务器，
3，web服务器访问日志tar包到/backup目录(假定为：/var/log/)，再推送到备份服务器
4，所有本地tar包保留时间为7天，备份服务器上保留6个月
5，备份服务器上按照备份数据的主机名+ip为目录的形式保存，要求所有tar包按时间名保存
#服务器配置
[[email protected]]# yum -y install rsync
[[email protected] yum.repos.d]# cat /etc/rsyncd.conf
#rsync_config
uid = rsync
gid = rsync
use chroot = no
max connections = 200
timeout = 300
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log
[backup]
path = /backup
ignore errors
read only = false
list = false
hosts allow = 192.168.44.0/24
hosts deny = 0.0.0.0/32
auth users = rsync
secrets file = /etc/rsync.password
[[email protected] ~]# useradd rsync -s /sbin/nologin -M #创建用户，不登录系统
[[email protected] ~]# rsync --daemon #启动rsync服务
[[email protected] ~]# mkdir /backup #创建共享目录
[[email protected] ~]# chown -R rsync.rsync /backup/ #权限给rsync
[[email protected] ~]# chmod -R 755 /backup #设置目录权限
[[email protected] ~]# echo "rsync:yehaixiao" /etc/rsync.password #创建密码文件
[[email protected] ~]# chmod 600 /etc/rsync.password #设置文件的权限
[[email protected] ~]#mkdir -p /srv/scripts/
[[email protected] ~]#mkdir -p /srv/bak-erroe-log/
[[email protected] /]# /etc/init.d/postfix start
[[email protected] /]# chkconfig postfix on
#服务器脚本内容
[[email protected] scripts]# cat checkbak.sh #md5sum验证数据，并发邮件
#/bin/sh
find /backup/ -type f -name "flag_$(date +%F).txt" |xargs md5sum -c |grep FAILED >> /srv/bak-erroe-log/erroe$(date +%F).log
mail -s "$(date +%U%T) bakcup" root < /srv/bak-erroe-log/erroe$(date +%F).log
[[email protected] scripts]# cat 180daydel.sh #删除备份服务器上备份目录，超过180的tar.gz包
#/bin/sh
find /backup/ -type f -name "*.tar.gz" -mtime +180 |xargs rm -f
[[email protected] scripts]# crontab -l
/5 /usr/sbin/ntpdate -u m01 >/dev/null 2>&1
00 00 /bin/sh /srv/scripts/checkbak.sh >/dev/null 2>&1
00 00 * /bin/sh /srv/scripts/180daydel.sh >/dev/null 2>&1
#客户端配置
[[email protected] ~]# yum install rsync -y
echo "yehaixiao" >/etc/rsync.password #“yehaixiao”为密码
[[email protected] ~]# chmod 600 /etc/rsync.password #设置文件的权限
[[email protected] ~]# mkdir /backup #本地用来打包的目录，然后rsync推送
#客户端rsync推送命令
rsync -avz --password-file=/etc/rsync.password /backup/ [email protected]::backup
#客户端脚本内容
[[email protected] scripts]# cat backup.sh
#!/bin/sh
#backup
hostn=$(hostname)
ip=$(grep -i ipaddr /etc/sysconfig/network-scripts/ifcfg-eth0|awk -F "=" ‘{print $2}‘)
Path="/backup/$hostn-$ip"
mkdir -p /$Path
#tar
tar zcf /$Path/www$(date +%F).tar.gz /var/www/html/ &&\
tar zcf /$Path/log$(date +%F).tar.gz /var/log/ &&\
tar zcf /$Path/conf$(date +%F).tar.gz /var/spool/cron/root /etc/rc.local /etc/sysconfig/iptables /srv/scripts/ &&\
find /$Path/ -type f -name "$(date +%F).tar.gz"|xargs md5sum > /$Path/flag_$(date +%F).txt
rsync -avz --password-file=/etc/rsync.password /backup/ [email protected]::backup
find /backup/ -type f -name ".tar.gz" -mtime +7 |xargs rm -f
[[email protected] scripts]# crontab -l
/5 /usr/sbin/ntpdate -u m01 >/dev/null 2>&1
00 00 /bin/sh /srv/scripts/backup.sh >/dev/null 2>&1
原文地址：http://blog.51cto.com/yehaixiao/2095213