keepalived

配置server4,ip 为172.25.77.4

1.首先将keepalived的压缩包进行解压 2.从网上获取libnfnetlink-devel-1.0.0-1.el6.x86_64.rpm安装包，并进行如下操作。

yum install openssl-devel libnfnetlink-devel-1.0.0-1.el6.x86_64.rpm -y yum install gcc-c++ -y cd /root/keepalived ./configure --prefix=/usr/local/keepalived --with-init=SYSV make && make install ln -s /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/ ln -s /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ ln -s /usr/local/keepalived/etc/keepalived/ /etc/ ln -s /usr/local/keepalived/sbin/keepalived /bin/ chmod +x /usr/local/keepalived/etc/rc.d/init.d/keepalived scp -r keepalived/ 172.25.77.4:/usr/local/ ip addr del 172.25.77.100/24 dev eth0 /etc/init.d/ldirectord stop chkconfig ldirectord off yum install mail -y

4.在server4上进行查看 进行如下操作

ln -s /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/ ln -s /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ ln -s /usr/local/keepalived/etc/keepalived/ /etc/ ln -s /usr/local/keepalived/sbin/keepalived /bin/ chmod +x /usr/local/keepalived/etc/rc.d/init.d/keepalived

5.更改server1上的keepalived配置,并发送给server4

yum install ipvsadm -y /etc/init.d ipvsadm start vim /etc/keepalived/keepalived.conf

/etc/init.d/keepalived start scp keepalived.conf 172.25.77.4:/etc/keepalived

6.更改server4上的keepalived配置文件

yum install ipvsadm -y /etc/init.d ipvsadm start vim /etc/keepalived/keepalived.conf

其他都和server1配置一样，但是要将12行注释掉，20行改为 state BACKUP

/etc/init.d/keepalived restart

7.此时在server1上查看ip addr,vip绑定在server1上 在server1上执行ifdown eth0,vip会漂移到server4上 在server1上执行ifup eth0,server4上执行ifdown eth0 vip 又会从server4上漂移到server1上。 8.