发送端配置：
一、配置密钥
1. 主/从服务器之间启用基于密钥的身份验证。登录发送端服务器并用 " ssh-keygen " 命令生成公共或私有的密钥。
2. 使用 " ssh-copy-id " 复制密钥文件到接收端服务器。
ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.16.144
二、安装rsync + lsyncd
1. 安装rsync
yum -y install rsync
2. 安装Lsyncd
1. 安装lsyncd依赖包
yum install lua lua-devel pkgconfig gcc asciidoc
2. 安装lsyncd rpm资源，并安装lsyncd
rpm -iUvh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-9.noarch.rpm
yum install lsyncd
三、配置lsyncd
1. 复制lsyncd配置文件
cp /usr/share/doc/lsyncd-2.1.5/examples/lrsync.lua /etc/lsyncd.conf
2. 编辑lsyncd配置文件
vi /etc/lsyncd.conf
----
-- User configuration file for lsyncd. --
-- Simple example for default rsync. -- settings { logfile ="/var/log/lsyncd.log", statusFile = "/tmp/lsyncd.stat", statusInterval = 1, } sync { default.rsync, source="/usr/blues/", target="192.168.16.144::backup", rsync = { rsh ="/usr/bin/ssh -l root -i /root/.ssh/id_rsa", binary = "/usr/bin/rsync", archive = true, compress = true, verbose = true } }
四、启动服务，并设置开机启动
1. 启动lsyncd服务
systemctl start lsyncd
2. 启动完成查看lsyncd状态，确保lsync启动成功
systemctl status lsyncd
3. 设置开机启动
systemctl enable lsyncd
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