[Pdns-users] Problem with Multihomed pdns server...

[bert hubert]

On Thu, Apr 24, 2003 at 11:00:02PM +0200, Brad Knowles wrote:
> At 7:16 PM +0200 2003/04/24, Mark Bergsma wrote:
> 
> >> This is causing some problems with resolving domains, obviously, since 
> >> some
> >> clients apparently just sit and loop on the first IP address, and don't
> >> listen to the response from the wrong address. Is there any way I can fix
> >> this?
> >
> > I would suggest running two separate instances of pdns, one for each IP.
> > As either nameserver will only receive queries directed to a it's
> > specific IP, it will use that IP to answer the queries.
> 
> 	That's a significant weakness in PowerDNS.  BIND doesn't have 
> this problem, and depending on how many interfaces the server has, 
> this could cause a very serious memory shortage, among many other 
> potential issues that you may have to deal with.

PowerDNS can bind perfectly to several sockets in one go. It does not need
multiple instances to do so. Because PowerDNS does not attempt to enumerate
the interfaces and be notified of new ones, it can easily drop root.

Regards,

bert

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