[OpenSIPS-Users] is_from_gw() DNS Names

[Mark Farmer]

Thanks Bogdan

It's no secret really, I was just speaking generically.
They are the MS Direct Routing domains, EG sip.pstnhub.microsoft.com

Mark.



On Tue, 22 Feb 2022 at 12:50, Bogdan-Andrei Iancu <bogdan at opensips.org>
wrote:

> Hi Mark,
>
> You say the DNS is publishing only one IP for the domain, but one may
> change ? If you want, you can PM me the actual domain to see how the DNS
> records looks like.
>
> Regards,
>
> Bogdan-Andrei Iancu
>
> OpenSIPS Founder and Developer
>   https://www.opensips-solutions.com
> OpenSIPS eBootcamp
>   https://www.opensips.org/Training/Bootcamp
>
> On 2/22/22 12:31 PM, Mark Farmer wrote:
>
> 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
>
>
>

-- 
Mark Farmer
farmorg at gmail.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20220225/0421c49f/attachment.html>