RSYNC 安装需要注意的：
yum -y install xinetd
vi /etc/xinetd.d/rsync
disable = no
service xinetd restart
http:///ak_2005/article/details/3768552
http://www.cnblogs.com/itech/archive/2009/08/10/1542945.html
error while loading shared libraries: libiconv.so.2: cannot open shared object file: No such file or directory
解决办法如下：
1.在/etc/ld.so.conf中加一行/usr/local/lib，
ldconfig
即可
RSYNC主配置文件：
如果没有/etc/rsync.conf 要自己手动建立
RSYNC主配置文件：
[root@carschina ~]# cat /etc/rsync
rsyncd.conf rsyncd.motd rsyncd.secrets rsync.pass
[root@carschina ~]# cat /etc/rsyncd.conf
secrets file = /etc/rsyncd.secrets
motd file = /etc/rsyncd.motd
read only = yes
list = yes
uid = root
gid = wheel
hosts allow = 127.0.0.1 184.171.168.58 218.85.133.184 61.187.235.117 115.238.73.233 61.160.210.41 219.129.216.248 222.76.215.108
max connections = 24
log file = /var/log/rsyncd.log
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
timeout = 300
################################################
[web_all]
path = /data/backup/all_web
auth users = rsy_user
[svn_clubcar]
path = /data/svn/svn_clubcar/files/svn_clubcar
auth users = rsy_user
read only = no
[530la]
path = /data/web/530la
read only = no
auth users = rsy_user #######系统真实用户
################################################
[carschina.com]
path = /data2/web/carschina.com
auth users = rsy_user
#######################################################
[our_cc]
path = /data2/web/ourcarschinacom
auth users = rsy_user
######################################djbzmz 2010-02-04 ZhuZhan 4 ge#############
[yiqiwangcom]
path = /data2/web/yiqiwangcom
auth users = rsy_user
[nflyw.com]
path = /data/web/nflyw.com
auth users = rsy_user
###########################################djbzmz 2010-02-07 BeiFenZhan 1 ge##################################
[zhiweicom]
path = /data/web/zhiweicom
auth users = rsy_user
########################################################################################################
[53dhcom]
path = /data/web/53dhcom
auth users = rsy_user
/usr/local/rsync/bin/rsync --daemon 启动rsync
RSYNC自动化配置：
5 1 * * * /data/sh/rsy/rsy_www.zhaoqipei.com_from_218.85.133.175_to_local.sh >> /data/logs/rsy/rsy_www.zhaoqipei.com_from_218.85.133.175_to_local.log 2>&1
作为备份服务器：184用rsync将其他网站数据同步过来：执行此脚本（当然，可以用一个计划时间来设置什么时候需要备份）：
[root@localhost /data/sh/rsy]# ./rsy_baozhicom_from_216.108.232.205_to_local.sh
15 9 * * * /data/sh/rsy/rsy_baozhicom_from_216.108.232.205_to_local.sh >>/data/logs/rsy/rsy_baozhicom_from_216.108.232.205_to_local.log 2>&1
baozhicom所同步过来的数据库：
[root@localhost /data/web/baozhicom/db]# ls
2011-12-13 2011-12-15 baozhicom_2011-12-13.tar.bz2 baozhicom_2011-12-14.tar.bz2 baozhicom_2011-12-15.tar.bz2
使用mysqlhotcopy需要安装 perl-DBD-mysql
如导出数据库：[root@localhost ~]# mysqlhotcopy -u root -p YvAcKEY1XtP9vFOxkulP（密码） xapp /data/web/xapp.im/db
