node1 192.168.5.101
node2 192.168.5.102
1.安装 openssl openssl-devel
yum install openssl openssl-devel -y
2. 安装keepalived
tar -zxvf keepalived-1.4.0.tar.gz
./configrue --prefix=/app/keepalived
make&&make install
3.配置keepalived配置文件
- ! Configuration File for keepalived
- global_defs {
- notification_email {
- root@localhost
- }
- notification_email_from root@localhost
- smtp_server localhost
- smtp_connect_timeout 30
- router_id NodeA #设置不一样
- }
- vrrp_instance VI_1 {
- state MASTER #指定A节点为主节点 备用节点上设置为BACKUP即可
- interface eth0 #绑定虚拟IP的网络接口
- virtual_router_id 51 #VRRP组名，两个节点的设置必须一样，以指明各个节点属于同一VRRP组
- priority 100 #主节点的优先级（1-254之间），备用节点必须比主节点优先级低
- advert_int 1 #组播信息发送间隔，两个节点设置必须一样
- authentication { #设置验证信息，两个节点必须一致
- auth_type PASS
- auth_pass 1111
- }
- virtual_ipaddress { #指定虚拟IP, 两个节点设置必须一样
- 192.168.5.200/24
- }
- }
按同样的方法配置节点B并修改配置文件，可将A节点的配置文件复制到B节点，并修改以下几项：
router_id NodeB
state BACKUP
priority 99
其它项不必修改。
7：启动keepalived
mkdir /etc/keepalived/
cp /app/keepalived-1.4.2/keepalived/etc/init.d/keepalived /etc/init.d/ init.d/keepalived 这个是在原文件中
cp /app/keepalived-1.4.2/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ sysconfig/keepalived 这个是在原文件中
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
systemctl start keepalived