IPv6 dynamic DNS services?

Jima jima at beer.tclug.org
Wed Mar 16 02:59:16 CET 2011

On 3/15/2011 2:47 PM, Daniel Roesen wrote:
> Don't get me wrong: I'm using DNS UPDATE with TSIG in my private life as
> well and would wish my home WAN router would support it too. Currently,
> I'm using a cronjob on the home server which polls the router via SNMP
> to fetch WAN IP address and then sends the DNS UPDATE to my auth
> nameserver primary. I would love the router to do that himself.

  My homegrown solution is for the CPE (in my case, devices running 
OpenWRT) to hit a CGI script, which does the TSIG-based update.  All the 
device needs is a basic HTTP client, like wget (preferably an 
SSL-capable version).

  My personal preference is to not have to have update capabilities 
exposed globally -- I actually use a hidden BIND master, with the 
published servers being slaves -- and also not have to worry about the 
clock on the CPE being too far off (which prevents TSIG from working, 
last I looked).


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