[lug] Hostname, Knoppix, where does it come from?

[Bob Collins]

Thanks Hugh. I am looking at the 2700HG-D Gateway to see if it is 
something I can change.

Hugh Brown wrote:
> On Wed, 2006-06-28 at 18:09 -0600, Bob Collins wrote:
>   
>> David L. Anselmi wrote:
>>     
>>> Bob Collins wrote:
>>> [...]
>>>       
>>>> bob at matt:~> ping knoppix
>>>>
>>>> PING knoppix.gateway.2wire.net (192.168.0.67) 56(84) bytes of data.
>>>>         
>>> [...]
>>>       
>>>> I have searched and destroyed every instance of Knoppix on the 
>>>> machine. I have also reloaded linux from scratch 3 times. It doesn't 
>>>> seem to effect the operation and I can ssh to and from it.
>>>>         
>>> If you don't know what's broke, reinstalling probably won't fix it.
>>>       
>> I know, but SuSE gets information from an info file and I thought I may 
>> have let something get buy me.
>>     
>>> What are you using for name resolution on the machine doing the ping?  
>>> Try:
>>>
>>> host -v knoppix
>>>
>>> and it will tell you what DNS it's asking.  You can also check the 
>>> hosts line in /etc/nsswitch and /etc/hosts.  All on the machine 
>>> sending the ping.  The machine you're pinging isn't involved unless 
>>> you're using some zeroconf magic.
>>>
>>>
>>>       
>> Qwest is the DSL line and peakpeak.com is my internet provider.
>> Here is what I get:
>> bob at matt:~> host -v Knoppix
>> Trying "Knoppix.gateway.2wire.net"
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55972
>> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
>>
>> ;; QUESTION SECTION:
>> ;Knoppix.gateway.2wire.net.     IN      A
>>
>> ;; ANSWER SECTION:
>> Knoppix.gateway.2wire.net. 0    IN      A       192.168.0.67
>>
>> ;; AUTHORITY SECTION:
>> Knoppix.gateway.2wire.net. 41728 IN     NS      
>> homeportal.gateway.2wire.net.
>>
>> ;; ADDITIONAL SECTION:
>> homeportal.gateway.2wire.net. 41728 IN  A       192.168.0.1
>>
>> Received 150 bytes from 192.168.0.1#53 in 13 ms
>> Trying "Knoppix.gateway.2wire.net"
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 750
>> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
>>
>> ;; QUESTION SECTION:
>> ;Knoppix.gateway.2wire.net.     IN      AAAA
>>
>> ;; ANSWER SECTION:
>> Knoppix.gateway.2wire.net. 0    IN      A       192.168.0.67
>>
>> ;; AUTHORITY SECTION:
>> Knoppix.gateway.2wire.net. 41728 IN     NS      
>> homeportal.gateway.2wire.net.
>>
>> ;; ADDITIONAL SECTION:
>> homeportal.gateway.2wire.net. 41728 IN  A       192.168.0.1
>>
>> Received 150 bytes from 192.168.0.1#53 in 15 ms
>> Trying "Knoppix.gateway.2wire.net"
>> Host Knoppix.gateway.2wire.net not found: 4(NOTIMP)
>> Received 43 bytes from 192.168.0.1#53 in 1 ms
>> bob at matt:~>                                                       
>>
>> Dave, thanks for your help.
>>
>>     
>
>
>
> This smacks of a dhcp/dns server with auto-update turned on.  Knoppix
> asked for a dhcp assignment, got one, then told the DNS server, "Hi I'm
> Knoppix, remember me" and the DNS server obliged.  Apparently, it was a
> memorable exchange.  That'd be my guess anyway.
>
> Hugh
>
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