Random DNS-reply

[Pete Ehlke]

On Sun Dec 18, 2005 at 15:58:41 +0100, Lars wrote:
>Hi
>I'm running Bind9 on Debina Sarge and it's working fine. Except when pinging
>a hostname with multiple hostnames based on a virtual NIC.
>Fx my web and ftp server is the same server/IP, so they all reply. I tried having only one hostname
>as a A-record and the rest as CNAME or having them all as A-Records. It
>makes no diference....
>
># ping ftp.utysket.dk
>PING ftp.utysket.dk (172.16.0.49) 56(84) bytes of data.
>64 bytes from ftp.utysket.dk (172.16.0.49): icmp_seq=1 ttl=64 time=0.520 ms
>64 bytes from intern.utysket.dk (172.16.0.49): icmp_seq=2 ttl=64 time=0.232 ms
>64 bytes from www.utysket.dk (172.16.0.49): icmp_seq=3 ttl=64 time=0.378 ms
>
Multiple PTR records, while not strictly illegal, result in odd and
often counterintuitive things happening, as you have just discovered.