Keepalived

安装

dnf install -y keepalived
systemctl enable keepalived
systemctl start keepalived

配置

! /etc/keepalived/keepalived.conf
! Configuration File for keepalived
vrrp_instance VI_1 {
    state BACKUP
    interface bond0
    virtual_router_id 2
    priority 100
    advert_int 1
    nopreempt
    authentication {
        auth_type PASS
        auth_pass 1234
    }
    virtual_ipaddress {
        100.127.255.2
    }
}

防火墙

firewall-cmd --add-rich-rule='rule protocol value="vrrp" accept' --permanent
firewall-cmd --reload
# 查看防火墙规则
firewall-cmd --list-all

启动

systemctl enable keepalived
systemctl start keepalived

验证

ip addr show bond0

日志

journalctl -u keepalived

关闭

systemctl stop keepalived
systemctl disable keepalived