Nginx+Keepalived实现站点高可用

http://seanlook.com/2015/05/18/nginx-keepalived-ha/

http://blog.csdn.net/conquer0715/article/details/47955553  keep配置与使用

http://blog.csdn.net/zll_liang/article/details/8001260  CSND keep的配置与使用

http://www.keepalived.org/pdf/sery-lvs-cluster.pdf keep官方文档

http://www.cnblogs.com/mchina/archive/2012/08/27/2644391.html keepalived+lvs+nat 博客园

http://www.cnblogs.com/mchina/archive/2012/08/27/2644391.html

http://atong.blog.51cto.com/2393905/1351709

sed -i 's/\r$//' build.sh   报错 “build.sh  /bin/bash^M: 坏的解释器：没有那个文件或目录”

http://newthink.blog.51cto.com/872263/1775489 tomcat

ps -ef | grep "nginx"  查看进程

ps -ef | grep "nginx: master process"| grep -v grep

http://www.runoob.com/linux/linux-shell-basic-operators.html   Linux教程

Reids Keepalived负载均衡 http://sfujiwara.hatenablog.com/entry/20120802/1343880266

http://www.54yunwei.com/?p=80

http://www.178linux.com/19183

http://www.discuz.net/thread-3513163-1-1.html

4)软件包信息查询
#列出资源库中所有可以安装或更新的rpm包 
yum list

#列出资源库中特定的可以安装或更新以及已经安装的rpm包 
yum list firfox* 
N:可以在rpm包名中使用通配符,查询类似的rpm包

#列出资源库中所有可以更新的rpm包 
yum list updates

#列出已经安装的所有的rpm包 
yum list installed