数据实时同步lsyncd指定用户运行主备模式

A和B两台服务器,A的ip为192.168.0.2,B的ip为192.168.0.3,A为主，B为备,A同步/home/web目录到B的/home/bak目录
以下是A上主的配置文件

settings {
 logfile = "/var/log/lsyncd/lsyncd.log",
 statusFile = "/var/log/lsyncd/lsyncd.status",
 inotifyMode = "CloseWrite",
 maxProcesses = 10,
}
sync {
 default.rsync,
 source = "/home/web",
 target = "[email protected]::backup",
 delete= true,
 exclude = { ".*" },
 delay = 1,
rsync = {
 binary = "/usr/bin/rsync",
 archive = true,
 compress = true,
 verbose = true,
 password_file = "/etc/rsync.password",
 _extra = {"--bwlimit=200"}
}
}

创建密码文件

echo "123258" >/etc/rsync.password
chmod 600 /etc/rsync.password

在B的备上操作

uid = rsync
gid = rsync
port = 873
fake super = yes
use chroot = no
max connections = 200
timeout = 300
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log
ignore errors
read only = false
list = false
hosts allow = 192.168.0.0/24
auth users = rsync_backup
secrets file = /etc/rsync.password
[backup]
comment = "bak dir"
path = /home/bak

创建用户，创建目录，创建密码文件，给权

useradd rsync -M -s /sbin/nologin
echo "rsync_backup:123258" >/etc/rsync.password
chmod 600 /etc/rsync.password
mkdir -p /home/bak
chown rsync.rsync /backup -R

在主上输入以下命令同步

rsync -avz /etc/passwd [email protected]::backup --password-file=/etc/rsync.password

测试后发现已经同步