Hi Charles
I have modparam("dmq", "multi_notify", 1) because my A record resolves more than one Kamailio addresses, and if i understood well the documentation says that we need set it to a value different of 0 to resolve all ip addresses associated to the Name configured on DMQ.
I'm using DMQ with 4 kamailio instances, so i think that i need have it set to a value different than 0, or i'm wrong?.

Documentation says:

Enables the ability to resolve multiple IPv4/IPv6 addresses for a single notification address.

A value of zero resolves to the first IP address found. A non-zero value resolves to all IP addresses associated with the host. This includes addresses from DNS SRV records, A and AAAA records.

Default value is 0.


Thank you
Cheers
José



2016-09-22 13:28 GMT+01:00 Charles Chance <charles.chance@sipcentric.com>:
Hey,

On 22 September 2016 at 12:18, José Seabra <joseseabra4@gmail.com> wrote:
Hello Daniel and Charles,
Thank you for your feedback.
Another doubt is when we use a FQDN that only resolves as A record, would be better DMQ send only a A query or is there any reason for always try SRV?

 
As far as I recall (it's been a while since I did anything with this), the default behaviour is to query A record only. There is a mod_param to enable multi-record/SRV lookup:

modparam("dmq", "multi_notify", 1)

But the default is off.

Is this not the behaviour you are seeing?

Cheers,
Charles


 
Thank you for your great job.

BR
José Seabra

2016-09-22 8:33 GMT+01:00 Charles Chance <charles.chance@sipcentric.com>:

Hello,

I can take a look today.

Cheers,
Charles


On 22 Sep 2016 06:20, "Daniel-Constantin Mierla" <miconda@gmail.com> wrote:

Hello,

I guess that the one who did the implementation of the srv query for dmq hasn't "allocated" any service name. I haven't looked at the sources, but I guess it should be a small patch to compose the srv dns string to be queried -- maybe that part can be made a mod param so each can choose its preferred service.

Cheers,
Daniel


On 21/09/16 19:28, José Seabra wrote:
Hello,
I have a doubt related with DMQ dns behavior, I noticed that when kamailio starts, it tries to resolve DMQ name configured on parameter notification_address as the following sequence:
  1. SRV 
  2. A
  3. AAAA

Isn't supposed kamailio  try first resolve the  NAPTR DMQ name, and then SRV?
I'm asking this because kamailio is trying resolve the SRV record without any transport protocol specified on query, as my dns server only accepts queries on the format "_Service._Proto.Name" the SRV will never be resolved.

Thank you.
BR
--
José Seabra


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Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
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José Seabra

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Sipcentric Ltd. Company registered in England & Wales no. 7365592. Registered office: Faraday Wharf, Innovation Birmingham Campus, Holt Street, Birmingham Science Park, Birmingham B7 4BB.

_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users




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Cumprimentos
José Seabra