Where have all the records gone?

Patrick — Sun, 16 Aug 2009 07:12:10 +0000

I’m currently working on a web application and I set up a development version of this application on my local box. For my convenience I set up a number of unit tests to ensure that I do not accidentally break stuff when implementing new features. A number of unit tests that involved DNS failed repeatedly with a time-out. For various different reasons I’m using a router provided by my telco. During my investigation of the matter, I found out that the internal DNS server of the router did only answer requests for A records. Requests for any other record types timed out. I wonder why they do this. The only reason I can think of is that it’s part of my ISPs fight against malware installed on their customers Windows boxes, so this is not exactly evil. On the other hand, it is not very nice of them, because I’m sure that it cost me a few hours to debug problems that resulted out of this. I think that I’ll call them and at least tell them that there are customers out there who really need the real, full, unfiltered DNS service to get their work done.

Networking

Patrick — Tue, 05 May 2009 03:42:44 +0000

What do botnets and GSM networks have in common? They are featured in this blog post:

UCSB research: Your botnet is my botnet – Taking over the Torpig botnet
German only, unfortunately: Chaosradio Express 120: OpenBSC – GSM Netzwerk im Eigenbau. Harald Welte talks about how to operate your own private GSM network by leveraging open source technology.

Too Far Afield » botnet

Where have all the records gone?

Networking