0x0 测试环境

总部生产服务器与分部备份服务器要求实现异地数据备份，环境如下

          **centos 6.5** 生产服务器目录: /home/zytest/files 备份服务器目录: /home/zytest/files 用户 / 密码: zytest / zytest 

0x1 生产服务器环境搭建

0x1.1 安装gcc编译器和rsync

yum install gcc rsync -y 

0x1.2 拷贝inotify到服务器并解压

cd /root  tar xfvz inotify-tools-3.13.tar.gz 

0x1.3 进入inotify 目录安装

   cd inotify-tools-3.13    ./configure    make    make install                           /usr/local/bin/inotifywait   ##检查是否安装成功 

0x2 备份服务器环境搭建

0x2.1 安装 xinetd 和 rsync

 yum install xinetd rsync -y 

0x3 以下内容两台服务器同步操作

 useradd -u 600 zytest     passwd zytest                zytest  su - zytest -c 'mkdir /home/zytest/files'   ##创建同步目录 

0x4 备份服务器上配置rsyncd

0x4.1 编辑/etc/xinetd.d/rsync按照以下内容修改

disable     = yes      ==> disable = no flags      = IPv6     ==> flags  = IPv4 server_args = --daemon ==> server_args = --daemon --config=/etc/rsyncd.conf  

0x4.2 编辑/etc/rsyncd.conf 并添加以下脚本信息

uid = root gid = root use chroot = no max connections = 1000 strict mode = yes port = 873 pid file = /var/run/rsyncd.pid   lock file = /var/run/rsyncd.lock   log file = /var/log/rsyncd.log # following for user "zytest", change for other users [zytest] path  = /home/zytest ignore errors auth users =zytest secrets file = /home/rsync-dst.ps read only = no list = false 

Ps: rsyncd 配置文件在 xinetd上，所以备份服务器安装xinetd

0x4.3 把密码写入调用的密码文件并赋予权限

echo zytest:zytest >> /home/rsync-dst.ps chmod 600 /home/rsync-dst.ps  

0x4.4 通过xinetd启动rsync

 /etc/rc.d/init.d/xinetd restart 

0x5 主服务器上配置inosync脚本文件

0x5.1 ** ##编辑/root/inosync添加脚本代码**

#!/bin/sh #chkconfig: 3 78 10  #This file exist from compile if [ ! -f /usr/local/bin/inotifywait ] then   echo "cannot start. file inotifywait NOT exist!"   exit fi  #This file is runnable shell script if [ ! -f /usr/local/bin/inosync.so.1 ] then   echo "contact administrator. inosync.so.1 NOT exist!"   exit fi  case "$1" in   'start')   /usr/local/bin/inosync.so.1 & ;;  'stop')   pid=`ps -ef | grep -v grep | grep "inotifywait" | awk '{print $2}'`   kill -9 $pid 2>&1 ;;  'restart')   $0 stop   $0 start ;;  esac 

0x5.2 赋予脚本权限，设置开机启动

  chmod a+x /root/inosync   cp /root/inosync /etc/rc.d/init.d 

0x5.3 配置调用的主脚本文件 /root/inosync.so.1

rhost=**备份服务器IP** user=zytest src=/home/zytest/files dst=zytest #dst corresponding to [zytest] in file /etc/rsyncd.conf on dst server log=/root/inosync.log /usr/local/bin/inotifywait -mrq --timefmt '%d/%m/%y %H:%M:%S' --format '%T %w%f %e' -e close_write,create,move,delete,attrib $src | while read files   do     echo == rsync begin == >> $log     rsync -avP --password-file=/home/rsync-src.ps --delete $src $user@$rhost::$dst >> $log 2>&1     echo -- rsyncd -- >> $log     date >> $log     echo "${files} was rsynced " >> $log 2>&1   done  

PS: %T后面有空格 %f和%e之间也有空格

0x5.4 赋予inosync.so.1脚本权限，拷贝到/usr/local/bin

chmod a+x /root/inosync.so.1 cp /root/inosync.so.1 /usr/local/bin 

0x5.5 把密码写入调用的密码文件并赋予权限

 echo zytest >> /home/rsync-src.ps  chmod 600 /home/rsync-src.ps 

0x6 目标服务器设置inosync自动启动并开启inosync服务

chkconfig --level 3 inosync on /etc/rc.d/init.d/inosync start 

0x7 测试 END

在生产服务器/home/zytest/files目录下创建文件和文件夹，查看备份存储是否也同步了文件和文件夹，同步即成功。

过程可通过日志查看

tail -f /root/inosync.log