[asterisk-dev] DNS Support in Asterisk

[Olle E. Johansson]

There is one version of c-ares in resiprocate as well.

C-ares has been in use for a long time and is in use every single day for you as part of 
most curl installs. I am not sure there is much to do there.

Libunbound adds a lot if that is what we want.

Why is a cache a good thing? You surely have a caching resolver running
on your system, right?

DNSsec is a huge deal - and the foundation for a lot of security things coming up.
Someone wrote an IETF draft about that and SIP.

https://tools.ietf.org/html/draft-johansson-sipcore-dane-sip-00

I got a patch sent to me that implements that in Asterisk with unbound,
but haven't gotten time to go through it and test it.

/O

On 12 Feb 2015, at 16:25, Brad Watkins <marquis42 at gmail.com> wrote:

> Looking at this, I'm inclined to say that libunbound is the better of
> the two options in spite of it being somewhat more difficult to
> consume DNS records than it would be with c-ares.  In my estimation a
> (seemingly?) more-active community and the inclusion of a cache are
> more important.  DNSSEC isn't a huge deal, at least not for me at this
> time, but is a nice bonus as well.
> 
> - Brad
> 
> On Thu, Feb 12, 2015 at 10:01 AM, Joshua Colp <jcolp at digium.com> wrote:
>> Greetings all,
>> 
>> I've extended the sections of my wiki page for c-ares[1] and libunbound[2]
>> to include further information about documentation, general usage
>> experience, and other aspects. Personally I lean towards libunbound because
>> it was straight forward to experiment with, supports DNSSEC, and has a
>> cache.
>> 
>> Cheers,
>> 
>> [1]
>> https://wiki.asterisk.org/wiki/display/~jcolp/DNS+Support+in+Asterisk#DNSSupportinAsterisk-c-ares
>> [2]
>> https://wiki.asterisk.org/wiki/display/~jcolp/DNS+Support+in+Asterisk#DNSSupportinAsterisk-libunbound
>> 
>> 
>> --
>> Joshua Colp
>> Digium, Inc. | Senior Software Developer
>> 445 Jan Davis Drive NW - Huntsville, AL 35806 - US
>> Check us out at: www.digium.com & www.asterisk.org
>> 
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