22 Sep
2016
22 Sep
'16
8:36 a.m.
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(a)sipcentric.com>om>:
Hey,
On 22 September 2016 at 12:18, José Seabra <joseseabra4(a)gmail.com> wrote:
--
Cumprimentos
José Seabra
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(a)sipcentric.com>om>:
Sipcentric Ltd. Company registered in England & Wales no. 7365592. Registered
office: Faraday Wharf, Innovation Birmingham Campus, Holt Street,
Birmingham Science Park, Birmingham B7 4BB.
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Hello,
I can take a look today.
Cheers,
Charles
On 22 Sep 2016 06:20, "Daniel-Constantin Mierla" <miconda(a)gmail.com>
wrote:
--
Cumprimentos
José Seabra
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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 Mierlahttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com
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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.
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