[Cialug] Network slowness

[Allen Kiddoo]

I always set my dns to opendns.com 208.67.220.220 and 208.67.222.222 -
fast and reliable.

Allen Kiddoo

On Mon, Feb 2, 2009 at 8:18 PM, Jeff Chapin <chapinjeff at gmail.com> wrote:
> Forgive me for asking the obvious, but does nslookup return quickly?
>
> $time nslookup www.yahoo.com
>
> If this is slow, double check the file /etc/resolv.conf. It should have
> something like:
> $ cat /etc/resolv.conf
> # Generated by NetworkManager
> nameserver 192.168.1.1
>
> only with the IP of your nameserver. I would compare to the settings on
> your windows box (*shudder*). If that file looks fine, I would go back
> to nslookup and test each nameserver and see if one is slow or timing out.
>
> I would also try something like :
> $ traceroute www.yahoo.com
> and see if there are any particularly slow hops. Your name server may
> also be a good IP to traceroute ;-)
>
> Again, forgive me if this is too basic, I would rather start with the
> 'obvious' though.
>
>
> Tom Sellers wrote:
>> I was wondering if anyone had experienced a problem such as this.
>>
>> When I ping a site such as www.yahoo.com it takes several seconds  for it to resolve.  This is true from the laptop that I have loaded with Debian, but if I perform the same ping function from a Windows workstation it responds almost immediately.  If I ping the IP address for www.yahoo.com directly from the Debian machine it responds quickly just as the Windows machine did while pinging by name.
>>
>> I am connected to the network by an ethernet cable,
>>
>> Is this some issue with the network setup of the Debian machine?
>>
>> I found some information that indicated that being setup with IPV6 can cause such an issue.  I am not sure what the default setup for Debian 4.0 is.
>>
>> Any thoughts or suggestions?
>>
>> The machine seems to be funtioning normally other than for the fact that name resolution takes exceptionally long.
>>
>>
>>
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