[AusNOG] Speaking of DNS...

[Nathan Phelan]

Nice one Mark!

https://www.whatsmydns.net/ is a simple dns tool too.

Cheers,
Nathan

-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Nishal Goburdhan
Sent: Wednesday, 12 February 2014 8:45 PM
To: Mark Foster
Cc: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] Speaking of DNS...


On 12 Feb 2014, at 9:23 AM, Mark Foster <blakjak at blakjak.net> wrote:

> ... what's the done method of troubleshooting DNS problems that only affect certain network(s), now that open resolvers are (hopefully) a thing of the past?
> I have semi-regularly struggled with troubleshooting email delivery problems (for example), due to an inability to see what ISP X sees as my MX record.
> 
> Onceuponatime I could just query their DNS servers myself. Now it seems I either have to hope that their helpdesk understand what an MX record actually is, or try to find a shell account on a machine within their network to tinker with...
> 
> I didn't realise that DNS was something that was a candidate for a network of 'looking-glass' systems, but perhaps it is... Need a nice, rate-limited, hard-to-abuse web-based DNS lookup tool to become commonly available, perhaps?


http://www.bortzmeyer.org/dns-lg.html


--n.
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