1. 检查是否安装

apt update
apt install -y rsync
dpkg -l |grep rsync
dpkg -L rsync

2. 配置文件

没有文件创建

进入清空内容再写入

vim /etc/rsyncd.conf
#created by oldboy 15:01 2009-6-5
##rsyncd.conf start##
fake super =yes 
uid = rsync
gid = rsync
use chroot = no
max connections = 2000
timeout = 600
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 = 10.0.0.0/24
#hosts deny = 0.0.0.0/32
auth users = rsync_backup
secrets file = /etc/rsync.password
######################################

[data]

comment = www by old0boy 14:18 2012-1-13 path = /data

3. 查看添加虚拟用户

useradd -s /sbin/nologin -M rsync
id rsync
echo 'rsync_backup:1' >/etc/rsync.password
cat /etc/rsync.password
chmod 600  /etc/rsync.password
ll /etc/rsync.password

4. 创建共享目录

mkdir -p /data
chown rsync.rsync /data
ll  -d /data

5. 启动服务

systemctl enable --now rsync.service 
systemctl restart rsync.service 
systemctl status rsync.service 
ps -ef |grep rsync
ss -lntup |grep rsync

6. 本机测试

rsync -av /etc/hostname rsync_backup@172.16.1.42::data
Password: 1
ll /data
cat /data/hostname

客户端测试后
cat /data/hostname

7. 客户端测试

rsync -av /etc/hostname rsync_backup@172.16.1.42::data
Password: 1

8. 客户端免密配置

echo '1' >/etc/rsync.client
chmod 600 /etc/rsync.client
ll /etc/rsync.client
rsync -av /etc/hosts rsync_backup@172.16.1.42::data --password-file=/etc/rsync.client
(指定客户端权限 密码权限)
  完成后回服务端查看
  ll /data