轻量级web故障自动切换keepalived
原文链接：http://blog.sina.com.cn/s/blog_6dbc8a680100u1s7.html一、环境说明
1、操作系统内核版本：2.6.9-78.ELsmp
2、Keepalived软件版本：keepalived-1.1.20.tar.gz
二、环境配置
1、主Keepalived服务器IP地址 192.168.111.223
2、备Keepalived服务器IP地址 192.168.111.100
3、Keepalived虚拟IP地址 192.168.111.150
三、软件下载地址
http://www.keepalived.org/software/keepalived-1.1.20.tar.gz
四、安装流程
1、上传Keepalived至/home/目录
2、解压Keepalived软件
# tar -zxvf keepalived-1.1.20.tar.gz
# cd keepalived-1.1.20
# ln -s /usr/src/kernels/2.6.9-78.EL-i686/usr/src//linux
# ./configure
3、提示
4、编译以及编译安装
# make && make install
5、将types.h调用的部分注释掉即可解决4出现的问题
vi/usr/src/kernels/2.6.9-78.EL-i686/include/linux/types.h
到158行操作如下
#endif
6、重新编译以及编译安装
# make && make install
7、修改配置文件路径
#cp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/
# cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/
# mkdir /etc/keepalived
#cp /usr/local/etc/keepalived/keepalived.conf /etc/keepalived/
# cp /usr/local/sbin/keepalived /usr/sbin/
8、设置为服务，开机启动
# vi /etc/rc.local
五、主Keepalived配置
1、修改配置文件
# vi /etc/keepalived/keepalived.conf
六、备Keepalived配置
1、修改配置文件
七、启动服务
八、查看网卡信息
1、主Keepalived网卡信息
九、验证测试
1、在主服务器上新建一个网页，内容为 192.168.111.223
2、在备用服务器上新建一个网页，内容为 192.168.111.100
3、启动主备服务器的nginx服务和Keepalived服务
4、通过浏览数，输入虚拟IP地址 192.168.111.150
页面显示为 192.168.111.223
5、关闭主服务器的Keepalived服务，通过浏览器输入IP地址192.168.111.150
页面显示为 192.168.111.100
6、再次启动主服务器的Keepalived服务，通过浏览器输入IP地址192.168.111.150
页面显示为 192.168.111.223
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