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Re: Debian resolves unkown hosts to itself



On 12/06/2007 03:32 PM Jonathan wrote:
Hello,

I have an odd thing happening with DNS. When I do something like:

   $ nslookup va.med.gov.
   Server:        206.141.193.55
   Address:    206.141.193.55#53

   ** server can't find va.med.gov: NXDOMAIN


Makes sense, right. But when I ping va.med.gov from the same server, it seems to resolve to the public ip of the box Im pinging from.

   # ping va.med.gov

   PING mydomain.com (1.2.3.4) 56(84) bytes of data.
   64 bytes from host.mydomain.com (1.2.3.4): icmp_seq=1 ttl=64
   time=0.013 ms


   --- mydomain.com ping statistics ---
   3 packets transmitted, 3 received, 0% packet loss, time 2002ms
   rtt min/avg/max/mdev = 0.006/0.008/0.013/0.004 ms



1.2.3.4 is the public IP of the machine I'm pinging from. va.med.gov is in no way affiliated with my domain.

/etc/resolv.conf looks like:

   search mydomain.com
   nameserver 4.2.2.2


Any ideas?

Thanks in advance!



Any chance you have in your /etc/hosts file:

1.2.3.4     mydomain.com  va.med.gov

Somewhere you have va.med.gov associated with your IP address, and this is the only place I can think of. When I put va.med.gov in my /etc/hosts file, I get the same behavior.






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