Hello Daniel,

Thank you for your answer. I managed to fix 20 minutes ago but the issue (I think) is in the RLS module. I had to add outbound_proxy and change the server_address parameters for the RLS to the real domain that ponts to kamailio.

Previous (when this was not working) I had

modparam("rls", "server_address", "sip:rls@domain.com")

The fix was:

modparam("rls", "server_address", "sip:rls@sip.domain.com")

modparam("rls", "outbound_proxy", "sip:sip.domain.com")

I'm like a beginner with this beautiful technology but I can't understand why this is happening. The RLS module checks for A record instead of SRV record in the DNS?

As I mentioned in my previous e-mail, my DNS configuration for domain.com is:

A records:

@ - > a web server ip

sip - > kamailio's ip

SRV records:

_sip._udp.domain.com -> sip.domain.com:5060

In my theory (what I understood) is that kamailio checks for the SRV record. So, to identify the IP, will follow the steps:

1. check SRV record (_sip._proto.domain.com) for domain.com ......sip.domain.com:5060

2. check A record for sip.domain.com.......xx.xx.xx.xx

3. send to xx.xx.xx.xx:5060

In a multidomain scenario, all the domains should have the SRV record in DNS pointing to sip.domain.com:5060.

I can't see how this RLS could work with a multi-domain scenario. Is it correct? Do I misunderstand something in the theory?

I hope I don't tell stupid things here.

Thank you.

Best regards,

Mihai M

On Fri, Aug 22, 2014 at 10:38 AM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

if you want to handle the domain.com on the SIP server but the IP of that domain is pointing elsewhere, just add in kamailio.cfg:

alias=domain.com

An alternative is to use domain module (suitable when you have many domains and you want to store them in database).

Cheers,
Daniel

On 21/08/14 19:06, Mihai Marin wrote:
Hello Sirs,
The RLS module is eating my life. I just managed to make it work 2 months ago and now is not working anymore after I tried to put the kamailio under domain (until now it was simple ip).

I don't understand why is not working but I saw a big difference that I don't understand:

My environment:

- the domain "domain.com" is pointing to the web server

- kamailio is hosted under sip.domain.com

- DNS has domain.com A record for web server's ip, sip.domain.com A record for kamailio's ip and SRV record for _sip._tcp.domain.com poting to sip.domain.dom

Problem:

kamailio presence is not working anymore and I think, the error is:

grep_sock_info - checking if host==us: 11==14 && [domain.com] == [xx.xx.xx.xx witch is the sip.domain.com IP]

If, I change domain.com in DNS to point on the same ip as sip.domain.com RLS is working. This, I can't understand. Can anyone explain me why is not working using this configuration? Also, the RLS is working if i change my domain to be sip.domain.com (ex: sip:user@sip.domain.com).

Thank you.

Best regards,

Mihai M
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