[CentOS] DNS

Joost Waversveld joost at waversveld.nl
Tue Jan 27 15:52:59 UTC 2009


Isn't this just the Reverse DNS name of your ip (171.203.20.173)?

Do a check through "dig -x 171.203.20.173". Most likely you will get the 
17120320173.upstream.com back. If so, it's the Reverse DNS name...

-- 
Joost Waversveld

adrian kok wrote:
> Sorry. I use fake name
> 
> host command can return right ip address
> 
> My question is
> 
> I am curious why the 2nd line is 
> 
> 171203020173.upstream.com instead of www.mydomain.com
> ?
> 
> It should be. right?
> 
> 64 bytes from www.mydomain.com (171.203.20.173):
> icmp_seq=1 ttl=43 time=291 ms
> 
> Thank you
> 
> --- Ralph Angenendt <ra+centos at br-online.de> wrote:
> 
>> adrian kok wrote:
>>> linux ~ # ping www.mydomain.com
>>> PING www.mydomain.com (171.203.20.173) 56(84)
>> bytes of
>>> data.
>>> 64 bytes from 171203020173.upstream.com
>>> (171.203.20.173): icmp_seq=1 ttl=43 time=291 ms
>>> 64 bytes from 171203020173.upstream.com
>>> (171.203.20.173): icmp_seq=2 ttl=43 time=290 ms
>> Something is severly broken on your side:
>>
>> [angenenr at shutdown ~]$host www.mydomain.com
>> www.mydomain.com is an alias for
>> www.mydomain.com.akadns.net.
>> www.mydomain.com.akadns.net has address
>> 66.150.120.131
>> www.mydomain.com.akadns.net has address
>> 216.34.94.184
>> [angenenr at shutdown ~]$
>>
>> Ralph
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> 
> 
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