server端配置

vim /usr/local/rsyncd.conf
pid file = /var/run/rsyncd.pid  
port = 873  
pid = root  
gid = root  
use chroot = no  
max connections = 200  
timeout 600  
lock file = /var/run/rsyncd.lock  
log file = /var/run/rsyncd.log  
secrets file = /usr/local/rsyncd.secrets   
motd file = /etc/rsyncd.motd  
  
[test]  
path = /home/
ignore errors  
read only = true  
list = false  
hosts allow = *  
#hosts deny = 0.0.0.0/32  
auth users root  #该用户系统中存在且对后面指定的备份目录拥有权限  
comment = ocpyang  test
vim /usr/local/rsyncd.motd
++++++++++++++++++++++++++++++++++++  
Wlecome to ocpyang  rsync services    #欢迎信息     
++++++++++++++++++++++++++++++++++++

-指定rsync访问的密码，密码不需要和系统账号密码相同

vim /usr/local/rsyncd.secrets
root:snow01

ln -s /usr/local/rsyncd.conf /etc/rsyncd.conf  
ln -s /usr/local/rsyncd.motd /etc/rsyncd.motd  
ln -s /usr/local/rsyncd.secrets  /etc/rsyncd.secrets 

chmod 600 /usr/local/rsyncd.secrets
chown root:root /usr/local/rsyncd.secrets

启动rsync

/usr/bin/rsync --daemon --config=/etc/rsyncd.conf
netstat -lntp | grep 873  
tcp        0      0 0.0.0.0:873                 0.0.0.0:*                   LISTEN      10689/rsync           
tcp        0      0 :::873                      :::*                        LISTEN      10689/rsync     
 
pkill rsync

客户端服务器配置

vim /etc/rsyncd.secrets
snow01 #密码
chmod 600 /etc/rsyncd.secrets
rsync -vzrtopg  --progress --delete  [email protected]::test /ocpyang/ 
  
rsync -vzrtopg --progress --delete  [email protected]::test /ocpyang/ --password-file=/etc/rsyncd.pwd

新建同步脚本

vim /rsync.sh
rsync -vzrtopg  --progress --delete  [email protected]::test /testbak/   
  
rsync -vzrtopg --progress --delete  [email protected]::test /testbak/ --password-file=/etc/rsyncd.pwd

chmod +x /root/rsync.sh #赋予权限
手动同步文件

cd /  
./rsync.sh

自动同步：

crontab -e
0,5 * * * * /rsync.sh #每隔五分钟同步一次
16 10 * * * /root/rsync.sh #每天16点01同步一次

重启
/etc/init.d/cron restart

如果你只需同步一次可以后台运行

nohup ./rsync.sh &

nohup用法
查看当前终端下的后台进程：
直接执行：jobs
直接输入：fg {jobid} //这里的{jobid}是通过jobs命令中看到的进程前[]中的数字1.2.3.4等。
例如 fg 1
ctrl +z 暂停
ctrl +c 停止