keepalived配置

两台台虚拟机MASTER 、BACKUP

1、关闭防火墙（全部虚拟机）
systemctl stop firewalld
setenforce 0

2、在MASTER、BACKUP

安装keepalived
yum -y install keepalived ipvsadm

修改配置文件
vim /etc/keepalived/keepalived.conf
############################
! Configuration File for keepalived

global_defs {
notification_email {br/>acassen@firewall.loc
failover@firewall.locbr/>sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
vrrp_strict #删除此行
vrrp_skip_check_adv_addr
vrrp_garp_interval 0
vrrp_gna_interval 0
}

vrrp_instance VI_1 {
state MASTER #从服务器改成BACKUP
interface eno16777736 #改成本机网卡名
virtual_router_id 51
priority 100 #MASTER大于BACKUP
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.124.100 #设置VIP
}
}
########################################

3、起启动并检测

systemctl start keepalived

ip a
MASTER 存在 VIP BACKUP没有VIP

MASTER上关闭keepalived systemctl stop keepalivedip aMASTER 上没有VIP BACKUP 上存在VIP