[OpenSIPS-Users] is_from_gw() DNS Names

[Mark Farmer]

Hi Bogdan

The GW's have 2 CNAME records which I have no control over. DR has entries
like subdomain.example.com:5061
I suspect the issue arises when the CNAMES swap around resulting in a
mismatch.

Currently I am using this to identify the source of the message which is
probably not the best in terms of security.

$avp(fd) = "subdomain.example.com";
if($(ct.fields(uri){s.index, $avp(fd)}) != NULL)

Perhaps there is a better way?

Best regards
Mark.



On Tue, 22 Feb 2022 at 08:56, Bogdan-Andrei Iancu <bogdan at opensips.org>
wrote:

> Hi Mark,
>
> If a gw is defined via FQDN, that will by DNS resolved (NAPTR, SRV, A
> records) when DB data is (re)loaded by DR module, and used later for such
> checks. All found IPs (from DNS) will be stored on the GW.
>
> How do you specify the GW address in DB and what kind of DNS records do
> you have for it ?
>
> Best regards,
>
> Bogdan-Andrei Iancu
>
> OpenSIPS Founder and Developer
>   https://www.opensips-solutions.com
> OpenSIPS eBootcamp
>   https://www.opensips.org/Training/Bootcamp
>
> On 2/18/22 6:04 PM, Mark Farmer wrote:
>
> Hi everyone
>
> I am using is_from_gw() to match against a group of gateways specified by
> DNS names which resolve to multiple IP addresses but it seems to be failing
> to match.
>
> Is this supported functionality or do I need to do something else in this
> case?
>
> Thanks and regards
> Mark.
>
>
> _______________________________________________
> Users mailing listUsers at lists.opensips.orghttp://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
>

-- 
Mark Farmer
farmorg at gmail.com
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