CentOS7

参考地址: https://www.server-world.info/en/note?os=CentOS_7&p=rsync

Copy files or directories from one location to an another host by rsync.

If you'd like to set rsync automatically by cron or others, it need to configure like follows because authentication is required without settings. For example, Copy files or directories under the [/root/work] on dlp.srv.world to [/home/backup] on www.srv.world.

+----------------------+          |          +----------------------+|     dlp.srv.world    |10.0.0.30 | 10.0.0.31|     www.srv.world    ||                      +----------+----------+                      ||     /root/work/*     |   ------------->    |     /home/backup/*   |+----------------------+        copy         +----------------------+

[1] Configure on source host.

[root@dlp ~]# yum -y install rsync[root@dlp ~]# vi /etc/rsync_exclude.lst# specify files or directories you'd like to exclude to copytesttest.txt

[2] Configure on destination host.

[root@www ~]# yum -y install rsync[root@www ~]# vi /etc/rsyncd.conf# any name you like[backup]# destination directory for copypath = /home/backup# hosts you allow to accesshosts allow = 10.0.0.30hosts deny = *list = trueuid = rootgid = rootread only = false[root@www ~]# mkdir /home/backup [root@www ~]# systemctl start rsyncd [root@www ~]# systemctl enable rsyncd

[3] It's OK. Execute rsync on Source Host like follows.

[root@dlp ~]# rsync -avz --delete --exclude-from=/etc/rsync_exclude.lst /root/work/ www.srv.world::backup# Add in cron if you'd like to run reguraly[root@dlp ~]# crontab -e# for example, run at 2:00 AM in a day00 02 * * * rsync -avz --delete --exclude-from=/etc/rsync_exclude.lst /root/work/ www.srv.world::backup

CentOS6

参考地址：

https://www.server-world.info/en/note?os=CentOS_6&p=rsync

http://www.centoscn.com/CentosServer/ftp/2015/1123/6442.html

Synchronizes files and directories from one location to another by rsync.

The example below is for automatical settings. Ecxample ⇒ Copy files and directories in /var/www/html on a HostA[10.0.0.31] to in /home/backup on HostB[10.0.0.30].

[1] Configure on Destination Host.

[root@dlp ~]# yum -y install rsync xinetd[root@dlp ~]# vi /etc/xinetd.d/rsync# default: off# description: The rsync server is a good addition to an ftp server, as it \#      allows crc checksumming etc.service rsync{    disable= no# change    flags= IPv6    socket_type= stream    wait= no    user= root    server= /usr/bin/rsync    server_args= --daemon    log_on_failure+= USERID}[root@dlp ~]# /etc/rc.d/init.d/xinetd start Starting xinetd:[ OK ][root@dlp ~]# chkconfig xinetd on[root@dlp ~]# mkdir /home/backup [root@dlp ~]# vi /etc/rsyncd.conf# any name you like[website]# destination directorypath = /home/backup# Hosts you allow to copy (specify source Host)hosts allow = 10.0.0.31hosts deny = *list = trueuid = rootgid = rootread only = false[root@dlp ~]# /usr/bin/rsync --daemon

[2] Configure on Source Host.

[root@www ~]# yum -y install rsync[root@www ~]# vi /etc/rsync_exclude.lst# specify files or directories you'd like to exclude to copytesttest.txt

[3] It's OK. Execute rsync on Source Host like follows.

[root@www ~]# rsync -avz --delete --exclude-from=/etc/rsync_exclude.lst /var/www/html/ 10.0.0.30::website# Add in cron if you'd like to run reguraly[root@www ~]# crontab -e# run at 2:00 AM in a day00 02 * * * rsync -avz --delete --exclude-from=/etc/rsync_exclude.lst /var/www/html/ 10.0.0.30::website

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