[Pdns-users] Strange problem with powerdns and keepalived

[Rory Toma]

On 1/24/12 4:02 PM, Stefan Schmidt wrote:
> Hi Rory,
>
> for PowerDNS Server there is a setting called disable-tcp if this is
> yes that would explain it.
>
> However as i think it unlikely that you wouldn't have spotted this by
> now, have you tried listening to tcp/53 (with nc for example) on your
> real server in order to see if the request actually reaches the
> machine?
> Maybe there isn't even a Loadbalancing set up for tcp/53.
>
> just my 2ç of course.
>
>   Stefan
I currently only have the one machine using keepalived, to simplify the 
situation as I debug it, and netstat shows listening on tcp port 53 on 
the keepalive address.

Also, I have replicated the exact same setup (even the hardware!) with 
/24 networks, and it works, just not with a /16.