1.原后台与新后台数据复制同步
Ip:10.123.11.143 (新)
10.123.11.145 （旧）
2.新服务器上建立rsync服务器：
vi /etc/default/rsync
将RSYNC_ENABLE=false改为RSYNC_ENABLE=true
cp /usr/share/doc/rsync/examples/rsyncd.conf /etc/
vi rsyncd.conf
# sample rsyncd.conf configuration file
# GLOBAL OPTIONS
#motd file=/etc/motdlog file=/var/log/rsyncd
# for pid file, do not use /var/run/rsync.pid i
f# you are going to run rsync out of the init.d script.
pid file=/var/run/rsyncd.pid
syslog facility=daemon
#socket options=
# MODULE OPTION
[host21]
comment = public archive
path = /opt/woshare
use chroot = no#
max connections=10
lock file = /var/lock/rsyncd
# the default for read only is yes...
read only = no
list = yes
uid = root
gid = root
# exclude =
# exclude from =
# include =
# include from =
# auth users =
secrets file = /etc/rsyncd.secrets
strict modes = yes
# hosts allow =
# hosts deny =
ignore errors = yes
ignore nonreadable = no
transfer logging = no
# log format = %t: host %h (%a) %o %f (%l bytes). Total %b bytes.
timeout = 600
refuse options = checksum dry-run
dont compress = *.gz *.tgz *.zip *.z *.rpm *.deb *.iso *.bz2 *.tbz
echo "syncer:syncer123">/etc/rsyncd.secrets
A:安装inotify工具inotify-tools
由于inotify特性需要Linux内核的支持，在安装inotify-tools前要先确认Linux系统内核是否达到了 2.6.13以上，如果Linux内核低于2.6.13版本，就需要重新编译内核加入inotify的支持，也可以用如下方法判断，内核是否支持 inotify：
[root@localhost webdata]# uname -r
2.6.18-164.11.1.el5PAE
[root@localhost webdata]# ll /proc/sys/fs/inotify
总计 0-rw-r--r-- 1 root root 0 04-13 19:56 max_queued_events
-rw-r--r-- 1 root root 0 04-13 19:56 max_user_instances
-rw-r--r-- 1 root root 0 04-13 19:56 max_user_watches
如果有上面三项输出，表示系统已经默认支持inotify，接着就可以开始安装inotify-tools了。
然后开始编译安装：[
root@localhost ~]# apt-get install inotify-tools
[root@localhost inotify-tools-3.14]# ll /usr/local/bin/inotifywa*
-rwxr-xr-x 1 root root 37264 04-14 13:42 /usr/local/bin/inotifywai
t-rwxr-xr-x 1 root root 35438 04-14 13:42 /usr/local/bin/inotifywatch
inotify-tools安装完成后，会生成inotifywait和inotifywatch两个指令，其中，inotifywait用于等待文件或文件集上的一个特定事件，它可以监控任何文件和目录设置，并且可以递归地监控整个目录树
B:建立自动上传脚本vi rsync-new21.sh
#!/bin/bash
SRC=/opt/woshare/
DST=/opt/woshare/
INWT=/usr/bin/inotifywait
RSYNC=/usr/bin/rsync
$INWT -mrq --timefmt '%d%m%y %H:%M' --format '%T%w%f' -e modify,delete,move,create,attrib $SRC|while read filedo$RSYNC -qzrtopg --delete --password-file=/etc/rsync-client.pass $SRC syncer@10.123.11.143::host21
Done