Re: Keepalived for IP failover only (no load balancing)

That's what we use keepalived for everywhere..

Here's the config we use on our DNS-servers as an example. Only
difference between primary and backup server, is that the backup server
has lover "priority" setting.


##################################################################
global_defs {
   notification_email {
     [email protected]
   }
   notification_email_from [email protected]
   smtp_server smtp.example.com
   smtp_connect_timeout 30
}

# Simple check that process is alive:
vrrp_script chk_named {
   script "pkill -0 named"        # cheaper than pidof
   interval 2                      # check every 2 seconds
   weight -4                       # default prio: -4 if KO
   fall 2                          # require 2 failures for KO
   rise 2                          # require 2 successes for OK
}

vrrp_instance DNS1_NO_VIP {
    state BACKUP
    interface eth0
    virtual_router_id 4
    priority 100
    advert_int 1
    # Have bind pick up new ip-address:
    notify_master "/usr/sbin/rndc reconfig"
    smtp_alert
    authentication {
        auth_type PASS
        auth_pass 1234abcd
    }
    virtual_ipaddress {
        109.247.114.4
        2a01:798:0:8012::4/128
    }
    track_script {
       chk_named
    }
}
##################################################################


  -jf

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