Linux负载均衡软件LVS+keepalived

death114

　　原文：http://www.weiruoyu.cn/?p=703
　　教程参考：http://nhylovezyh.blog.运维网.com/1444948/666446
　　安装ipvsadm
　　[root@localhost lvs]# yum install ipvsadm
　　即可。
　　或者其它办法安装：
　　1.下载2.4版本
　　[root@localhost lvs_keepalived]# wght -c http://www.linuxvirtualserver.org/software/kernel-2.6/ipvsadm-1.24.tar.gz
　　[root@localhost lvs_keepalived]# tar zxf ipvsadm-1.24.tar.gz
　　[root@localhost lvs_keepalived]# cd ipvsadm-1.24
　　如果报错：
　　添加链接：
　　[root@localhost ipvsadm-1.24]# ln -s /usr/src/kernels/2.6.18-238.el5-i686/ /usr/src/linux
　　如果kernels里面什么都没有，就运行如下命令进行安装内核
　　#yum -y install openssl openssl-devel
　　安装keepalived
　　#wget http://www.keepalived.org/software/keepalived-1.1.20.tar.gz

#tar xzvf keepalived-1.1.20.tar.gz
#cd keepalived-1.1.20
#./configure --prefix=/usr/local/keepalived
#make && make install正确完成安装会显示如下信息：Keepalived configuration　　------------------------
　　Keepalived version : 1.1.20
　　Compiler : gcc
　　Compiler flags : -g -O2
　　Extra Lib : -lpopt -lssl -lcrypto
　　Use IPVS Framework : Yes
　　IPVS sync daemon support : Yes
　　Use VRRP Framework : Yes
　　Use Debug flags : No
然后对keepalived做以下操作：#cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/
#cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig
#mkdir /etc/keepalived
#cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
#cp /usr/local/keepalived/sbin/keepalived /usr/sbin/　　里面的有些出入：安装完keepalive后，需要添加服务，不要使用下面的命令：

#check --add keepalived　　应该使用如下命令：
　　先查看：
　　[root@localhost keepalived-1.1.20]# chkconfig --list keepalived
　　如果没有，就添加
　　[root@localhost keepalived-1.1.20]# chkconfig --add keepalived
　　然后开启在查看：
　　[root@localhost keepalived-1.1.20]# chkconfig --list keepalived
　　keepalived   0:关闭 1:关闭 2:关闭 3:关闭 4:关闭 5:关闭 6:关闭
　　发现是关闭的，然后设置开机启动，并查看
　　[root@localhost keepalived-1.1.20]# chkconfig keepalived on
　　[root@localhost keepalived-1.1.20]# chkconfig --list keepalived
　　keepalived   0:关闭 1:关闭 2:启用 3:启用 4:启用 5:启用 6:关闭
　　修改配置文件
　　参考：http://crazyming.blog.运维网.com/1048571/496526
　　参考：http://ixdba.blog.运维网.com/2895551/554029