Centralops.net is handy, though obviously it would be better if you could select from a list of DNS...<div><br></div><div>/relurks...<span></span><br><br>On Wednesday, 12 February 2014, Mark Foster <<a href="mailto:blakjak@blakjak.net">blakjak@blakjak.net</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">... 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?<br>
<br>
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.<br>
<br>
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...<br>
<br>
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?<br>
<br>
Cheers<br>
Mark.<br>
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</blockquote></div><br><br>-- <br>Jason Reid<br>