Re: DNS checker at squish.net

[Kabagambe Kenneth <kenneth at eahd.or.ug>]

The delegation of computerpoint.co.ug as a name server for the eahd.or.ug
was removed so what you have got were cached records.
From what i have noted, psg.com has been down for the past 3hrs.

Ken

On Fri, 3 Jan 2003, Brian Candler wrote:

> I was just told about this excellent on-line DNS checker:
>
>   http://www.squish.net/dnscheck/
>
> Just enter the name you want to resolve and it shows all the possible trees
> of lookups, and validates the respnose from each server. This includes
> following the lookups for NS and CNAME records.
>
> Trying "www.afnog.org" for example, and it finds the following problem:
>
> www.afnog.org. 7200 IN CNAME wawa.eahd.or.ug.
>   then one of the servers for eahd.or.ug is
>   computerpoint.co.ug (195.238.52.191)
>     which in turn says "no such domain"
>
> I think that's the same broken nameserver I found a few weeks ago which
> claims to be authoritative for the whole Internet. I suggest that whoever
> runs the 'eahd.or.ug' domain should ensure that delegation to this server is
> removed as soon as possible!
>
> It also shows lack of connectivity to rip.psg.com, but that looks like a
> temporary network problem.
>
> There is a very useful summary at the end of the search, which says:
>
> 4.5% of queries will end in failure at 195.238.52.191 (computerpoint.co.ug)
> - no such domain
>
> 0.5% of queries will end in failure at 212.88.97.20 (DEMON.MTN.co.ug) -
> failed to resolve computerpoint.co.ug due to 212.88.97.20 - returned
> SERVFAIL code
>
> 25.0% of queries will end in failure at 147.28.0.39 (RIP.PSG.COM) - query
> timed out
>
> The SERVFAIL and timeouts will be retried, but around 4.5% of people trying
> to access 'www.afnog.org' will get a 'no such domain' error, because of this
> broken nameserver.
>
> Regards,
>
> Brian.
>
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