[linux] lsyncd同步工具详解程序员

1.源主机root用户运行同步程序，backup用户验证目标主机；如果不想配密钥验证，同样支持密码验证，在运行时(nodaemon)提示输入或者在配置文件定义password_file参数。

生成密钥对（略），目标主机添加公钥，注意.ssh和密钥的属主权限 

[[email protected] ~]# echo "yyy" /home/backup/.ssh/authorized_keys 

源主机添加私钥 

[[email protected] ~]# echo "xxx" /root/.ssh/backup_rsa 

[[email protected] ~]# chmod 600 /root/.ssh/backup_rsa 

验证登录 

[[email protected] ~]# ssh -i /root/.ssh/backup_rsa [email protected]

2.源主机安装lsyncd，修改配置文件

安装lsyncd之前先安装epel-release 

[[email protected] ~]# yum install -y lsyncd 

[[email protected] ~]# rpm -qa | grep lsyncd 

lsyncd-2.2.2-1.el7.x86_64 

[[email protected] ~]# cat /etc/lsyncd.conf 

---- 

-- User configuration file for lsyncd. 

-- Simple example for default rsync, but executing moves through on the target. 

-- For more examples, see /usr/share/doc/lsyncd*/examples/ 

settings { 

 logfile = "/var/log/lsyncd.log", 

 statusFile = "/var/log/lsyncd.status", 

sync { 

 default.rsyncssh, 

 source = "/data/web/web1", 

 host = "[email protected]", 

 targetdir = "/data/backup/web/web1", 

 -- 10秒同步一次，默认15秒 

 delay = 10, 

 rsync = { 

 archive = true, 

 compress = true, 

 verbose = true, 

 rsh = "ssh -o StrictHostKeyChecking=no -i /root/.ssh/backup_rsa", 

sync { 

 default.rsync, 

 source = "/data/web/web2", 

 target = "[email protected]:/data/backup/web/web2", 

 rsync = { 

 archive = true, 

 compress = true, 

 verbose = true, 

 rsh = "ssh -o StrictHostKeyChecking=no -i /root/.ssh/backup_rsa", 

 --_extra = {"-e","ssh -o StrictHostKeyChecking=no","-e ssh -i /root/.ssh/backup_rsa"} 

}

3.源主机启动服务，看日志，目标主机检查文件同步

[[email protected] ~]# systemctl start lsyncd 

单源多目标需求可参考

How to install and configure Lsyncd

1.单目录同步到多机器：

源主机目录/data/web/sh.your.com同步到多机器 

172.16.2.104:/data/web/sh.your.com 

172.16.2.105:/data/web/sh.your.com 

2.多目录同步到相同机器：

源主机多目录 

/data/web/resource.your.com 

/data/web/www.your.com 

同步到相同机器 

172.16.2.99:/data/backup/web/resource.your.com 

172.16.2.99:/data/backup/web/www.your.com

[[email protected] ~]# cat /etc/lsyncd.conf 

---- 

-- User configuration file for lsyncd. 

-- Simple example for default rsync, but executing moves through on the target. 

-- For more examples, see /usr/share/doc/lsyncd*/examples/ 

settings { 

 logfile = "/var/log/lsyncd.log", 

 statusFile = "/var/log/lsyncd.status", 

servers = { 

 "[email protected]", 

 "[email protected]", 

for _, server in ipairs(servers) do 

sync { 

 default.rsyncssh, 

 source = "/data/web/sh.your.com", 

 host = server, 

 targetdir = "/data/web/sh.your.com", 

 delay = 5, 

 rsync = { 

 archive = true, 

 compress = true, 

 verbose = true, 

 rsh = "ssh -o StrictHostKeyChecking=no -i /root/.ssh/backup_rsa", 

sites = { 

 "resource.your.com", 

 "www.your.com", 

for _, site in ipairs(sites) do 

sync { 

 default.rsyncssh, 

 source = "/data/web/" .. site, 

 host = "[email protected]", 

 targetdir = "/data/backup/web/" .. site, 

 delay = 300, 

 rsync = { 

 archive = true, 

 compress = true, 

 verbose = true, 

 rsh = "ssh -o StrictHostKeyChecking=no -i /root/.ssh/backup_rsa", 

原创文章，作者：Maggie-Hunter，如若转载，请注明出处：https://blog.ytso.com/2412.html