环境搭建：(接收端,推送端)
一.首先关闭selinux与iptables
# vi /etc/sysconfig/selinux
---------
SELINUX=disabled
---------
# setenforce 0
# service iptables stop
在使用sersync之前，我们必须安装配置好rsync服务器
rsync (接收端)
一.安装rsync(centos6.3默认已安装)
# yum install rsync -y
# yum install xinetd -y
二.启动rsync依赖服务
# /etc/init.d/xinetd start
# chkconfig xinetd on
三.配置：
# vi /etc/rsyncd.conf
--------------------
uid = root
gid = root
use chroot = no
max connections = 10
strict modes = yes
port = 873
address = 192.168.100.29
[data] # rsync模块名，后面配置sersync会用到
path = /data # 该同步目录只要uid所指定的用户有写权限即可
comment = mirror for test
ignore errors
read only = no
list = no
auth users = user
secrets file = /etc/rsync.pas # 密码认证文件，必须为600权限，否则rsync传输会报错
hosts allow = *
# hosts deny = 0.0.0.0/0
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log
--------------------
四.创建同步目录
# mkdir /data
五.配置认证文件
# echo "user:123456" > /etc/rsync.pas
# chmod 600 /etc/rsync.pas
# rsync --daemon --config=/etc/rsyncd.conf
六.重启xinetd使其配置生效：
# /etc/init.d/xinetd restart
七.设置开机启动：
# echo "rsync --daemon --config=/etc/rsyncd.conf" >> /etc/rc.local
sersync (推送端)
一.下载sersync源码包
# wget http://sersync.googlecode.com/files/sersync2.5_32bit_binary_stable_final.tar.gz
注:若在64位平台安装则可下载64位sersync源码包,本例用32位
# wget http://sersync.googlecode.com/files/sersync2.5_64bit_binary_stable_final.tar.gz
二.创建sersync目录结构
# mkdir /usr/local/sersync
# mkdir /usr/local/sersync/conf
# mkdir /usr/local/sersync/bin
# mkdir /usr/local/sersync/log
# tar zxvf sersync2.5_32bit_binary_stable_final.tar.gz
# cd GNU-Linux-x86/
# cp confxml.xml /usr/local/sersync/conf
# cp sersync2 /usr/local/sersync/bin
三.配置sersync
1.首先创建连接rsyncd的密码文件
# echo "123456" >/etc/rsync.pas
# chmod 600 /etc/rsync.pas
2.配置confxml.xml
# cd /usr/local/sersync/conf
# vi confxml.xml
按照注释进行修改
-----------------------------
<?xml version="1.0" encoding="ISO-8859-1"?>
<head version="2.5">
# 设置本地IP和端口
<host hostip="localhost" port="8008"></host>
# 开启DUBUG模式
<debug start="false"/>
# 开启xfs文件系统
<fileSystem xfs="false"/>
# 同步时忽略推送的文件(正则表达式),默认关闭
<filter start="false">
<exclude expression="(.*)\.svn"></exclude>
<exclude expression="(.*)\.gz"></exclude>
<exclude expression="^info/*"></exclude>
<exclude expression="^static/*"></exclude>
</filter>
<inotify>
# 设置要监控的事件
<delete start="true"/>
<createFolder start="true"/>
<createFile start="true"/>
<closeWrite start="true"/>
<moveFrom start="true"/>
<moveTo start="true"/>
<attrib start="true"/>
<modify start="true"/>
</inotify>
<sersync>
# 本地同步的目录路径
<localpath watch="/data">
# 远程IP和rsync模块名
<remote ip="192.168.100.29" name="data"/>
<!--<remote ip="192.168.8.39" name="tongbu"/>-->
<!--<remote ip="192.168.8.40" name="tongbu"/>-->
</localpath>
<rsync>
# rsync指令参数
<commonParams params="-auvzP"/>
# rsync同步认证
<auth start="true" users="user" passwordfile="/etc/rsync.pas"/>
# 设置rsync远程服务端口，远程非默认端口则需打开自定义
<userDefinedPort start="false" port="874"/><!-- port=874 -->
# 设置超时时间
<timeout start="true" time="100"/><!-- timeout=100 -->
# 设置rsync+ssh加密传输模式,默认关闭，开启需设置SSH加密证书
<ssh start="false"/>
</rsync>
# sersync传输失败日志脚本路径，每隔60会重新执行该脚本，执行完毕会自动清空。
<failLog path="/usr/local/sersync/log/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
# 设置rsync+crontab定时传输，默认关闭
<crontab start="false" schedule="600"><!--600mins-->
<crontabfilter start="false">
<exclude expression="*.php"></exclude>
<exclude expression="info/*"></exclude>
</crontabfilter>
</crontab>
# 设置sersync传输后调用name指定的插件脚本，默认关闭
<plugin start="false" name="command"/>
</sersync>
# 插件脚本范例
<plugin name="command">
<param prefix="/bin/sh" suffix="" ignoreError="true"/> <!--prefix /opt/tongbu/mmm.sh suffix-->
<filter start="false">
<include expression="(.*)\.php"/>
<include expression="(.*)\.sh"/>
</filter>
</plugin>
# 插件脚本范例
<plugin name="socket">
<localpath watch="/opt/tongbu">
<deshost ip="192.168.138.20" port="8009"/>
</localpath>
</plugin>
<plugin name="refreshCDN">
<localpath watch="/data0/htdocs/cms.xoyo.com/site/">
<cdninfo domainname="ccms.chinacache.com" port="80" username="xxxx" passwd="xxxx"/>
<sendurl base="http://pic.xoyo.com/cms"/>
<regexurl regex="false" match="cms.xoyo.com/site([/a-zA-Z0-9]*).xoyo.com/p_w_picpaths"/>
</localpath>
</plugin>
</head>
-----------------------------
3.创建推送端sersync同步目录
# mkdir /data
4.设置环境变量：
# echo "export PATH=$PATH:/usr/local/sersync/bin/" >> /etc/profile
# source /etc/profile
5.启动sersync
# sersync2 -r -d -o /usr/local/sersync/conf/confxml.xml
注：重启操作如下：
# killall sersync2 && sersync2 -r -d -o /usr/local/sersync/conf/confxml.xml
6.设置开机启动
# echo "sersync2 -r -d -o /usr/local/sersync/conf/confxml.xml" >> /etc/rc.local
验证：
(推送端)
# cd /data
# touch 1 2 3 4 5
# echo "test sersync" > 1
(接收端)
# cd /data
# ls
--------------------
1 2 3 4 5
--------------------
# cat 1
--------------------
test sersync
--------------------
注：这里提一个细节，如果接收端服务器本地创建或修改/data同步目录下的文件，当服务端进行目录同步时则不会对接收端服务器本地创建或修改的文件产生影响。
