Linux uses rsync to migrate server data

Debian install rsync

#直接执行
apt-get install rsync


#若出现错误提示
#Package 'rsync' has no installation candidate

#执行
apt-get update
apt-get upgrade

#再次执行
apt-get install rsync

hundred

yum install rsync

master server A

Migrate to server B

Both A and B install rsync

The following is configured on the A server:

After the rsync server is installed, the rsync.conf file is not generated, and rsyncd.conf needs to be created manually

vim /etc/rsyncd.conf

Fill in the following content as required

log file = /var/log/rsyncd.log
pidfile = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
secrets file = /etc/rsyncd.secrets
hosts allow = B 的 IP
[wwwroot]
path = /www/wwwroot 
comment = sync etc from server
uid = root
gid = root
port = 873
ignore errors
use chroot = no
read only = yes
list = no
dont comperss = *.gz *.bz2 *.tgz *.zip *.rar *.z
max connections = 200
timeout = 600
auth users = backuser

Configure sync username and password

vim /etc/rsyncd.secrets

Just configure one line in the rsyncd.secrets file

backuser:123456

Important, you must give /etc/rsyncd.secrets 600 permissions

chmod 600 /etc/rsyncd.secrets 

Also create a username and password file on the B client and execute permissions

vim /etc/rsyncd.secrets
#写入密码
123456
#赋权
chmod 600 /etc/rsyncd.secrets 

After the configuration is complete, run rsync on server A

rsync --daemon

#注意，每次修改 rsyncd.conf 都要重启 rsync
#如果无法重启可以杀死 rsync 的进程id

Transfer on B client

rsync -avzP backuser@A的IP::wwwroot /www/wwwroot/ --password-file=/etc/rsyncd.secrets