MBCDN

sudo apt install -y keepalived

Die Konfig liegt unter

/etc/keepalived/keepalived.conf

vrrp_instance VI_1 {
    state MASTER
    interface ens160
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass geheim
    }
    virtual_ipaddress {
        172.21.0.166
    }

vrrp_instance VI_1 {
    state BACKUP
    interface ens160
    virtual_router_id 51
    priority 90
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass geheim
    }
    virtual_ipaddress {
        172.21.0.166
    }
}