Rsync incremental synchronization method under Linux

You can first use Rpm-qa |grep rsync to see if rsync is installed

Let's talk about the Rsyns configuration process.

I. Configuring the server Side

First edit the/etc/rsyncd.conf content as follows:

uid = nobody #进行备份的用户nobody为任何用户gid = nobody #进行备份的组 nobody为任何组use chroot = no #不使用chrootmax connections = 10 #最大连接数log file = /var/log/rsyncd.log #日志文件[rsyncd] # 这里是认证的模块名path = /home/test/ #参与同步的目录ignore errors # 可以忽略一些无关的IO错误read only = yes #只读list = no #不允许列清单anth users = root #认证的用户名secrets file = /etc/rsyncd.secrets #密码文件存放地址

Then edit a rsyncd.secrets password store file under/etc

Format is

User name: password such as root:xl1100

Finally, Rsync is started as a daemon on the server side

The command is:

rsync –daemon

Rsync-initiated port is 873 port

Two. Configuration of the Client

Edit a rsyncd.secrets password store file under/etc

The execution commands are:

rsync -vzurtopg --progress [email protected]::rsyncd /home/test --password-file=/etc/rsync.secret

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参数 v 表示详细提示z 表示压缩u 表示只进行更新topg 保持文件原有属性如属主、时间的参数--progress 指显示--delete 指如果服务器端删除了这一文件，那么客户端也相应把文件删除，保持真正的一致root 为用户名@192.168.100.150为服务器IP::后面的rsyncd为认证的模块名/home/test 为备份到本地的目录名--password-file=/etc/rsync.secret 制定密码存放位置的地址

You can write scripts rsync.sh

#!/bin/shrsync -vzrtopg --progress [email protected]::rsyncd /home/test --password-file=/etc/rsync.secret

The script is then added to the/etc/crontab file to perform the update periodically

Rsync incremental synchronization method under Linux