[root@node04 ~]# yum install -y xinetd rsync
[root@node04 ~]# vim /etc/xinetd.d/rsync
service rsync
{
        disable = no
        flags           = IPv6
        socket_type     = stream
        wait            = no
        user            = root
        server          = /usr/bin/rsync
        server_args     = --daemon
        log_on_failure  += USERID
}

[root@node04 ~]# vim /etc/rsyncd.conf 
uid = root
gid = root
use chroot = no
max connections = 1000
transfer logging = true
log format = "%o %h [%a] %m (%u) %f %l"
log file = /var/log/rsyncd.log
secrets file = /etc/rsyncd.pwd
fake super = yes

[mysql]
path = /home/mysql/backup
auth users = mysql
uid = mysql
gid = mysql
read only = no

[root@node04 ~]# vim /etc/rsyncd.pwd
mysql:abcd.1234
[root@node04 ~]# chmod 600 /etc/rsyncd.pwd

[root@node04 ~]# systemctl start xinetd.service
[root@node04 ~]# systemctl status xinetd.service

[root@node04 ~]# netstat -tunlp | grep 873
tcp        0      0 0.0.0.0:873             0.0.0.0:*               LISTEN      22082/xinetd  

[root@node01 ~]# yum install -y lua lua-devel lsyncd rsync 
[root@node01 ~]# vim /etc/lsyncd.conf
settings {
    logfile      ="/var/log/lsyncd/lsyncd.log",
    statusFile   ="/var/log/lsyncd/lsyncd.status",
    inotifyMode  = "CloseWrite",
    maxProcesses = 8,
    -- nodaemon =true,
    }
sync {
    default.rsync,
    source    = "/home/mysql/backup",
    target    = "mysql@192.168.40.104::mysql",
    -- delete    = "false", ##源端删除，目标端保留
    -- exclude = { '*.log','*.tmp'}, ##排除指定扩展名的文件
    -- exclude = {'log/**','tmp/**'}, ##排除目录中的全部文件
    -- excludeFrom = "/etc/rsyncd.d/rsync_exclude.lst",
    rsync     = {
        binary    = "/usr/bin/rsync",
        archive   = true,
        compress  = true,
        verbose   = true,
        password_file = "/etc/client.pwd"
        }
    }

[root@node01 ~]# vim /etc/client.pwd
abcd.1234

[root@node01 ~]# chmod 600 /etc/client.pwd

[root@node01 ~]# systemctl start lsyncd.service
[root@node01 ~]# systemctl status lsyncd.service