[OpenSIPS-Users] Understanding aliases core parameter versus domain module

[Bogdan-Andrei Iancu]

Hi Gregory,

in order to keep this simple. The "alias" parameter is the original, old 
and static way of configuring the SIP domains to be served by OpenSIPS. 
Later, the domain module took over that job, so you do not need the 
alias'ing anymore. We still keep it for simple setups where there is not 
DB support ;)

Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
   https://www.siphub.com

On 21.05.2025 18:05, Gregory Massel via Users wrote:
> Hello all
>
> I'm trying to understand whether it is necessary to have a core 
> "alias" parameter for every name by which the OpenSIPS server is known 
> or if it's adequate to simple list these in the table that the domain 
> module reads?
>
> At present I have something similar to:
>
> socket=udp:1.2.3.4:5060
>
> alias=udp:host1.domain.com:5060
> alias=udp:host2.domain2.com:5060
> alias=udp:host3.domain3.com:5060
>
> loadmodule "domain.so"
> modparam("domain", "db_url", 
> "mysql://opensips:password@localhost/opensips")
> modparam("domain", "db_mode", 1)
>
> With all three of the domains associated with the aliases (i.e. 
> excluding protocol and port) also included in the 'domain' table in 
> the database.
>
> An "opensips-cli -x mi domain_reload" is an extremely quick and 
> non-disruptive way to add an additional domain to a live system, 
> however, adding an alias to opensips.cfg and restarting OpenSIPS is, 
> by contrast, a relatively slow and disruptive process (at least on 
> versions < 3.6 where, to the best of my understanding, an 
> "opensips-cli -x mi reload_routes" won't reload the aliases.)
>
> When I add a domain to the domains table, all appears to work 
> correctly, so I'm not seeing any specific reason why I need the 
> aliases, however, don't want to find out abruptly when something breaks.
>
> Are there specific circumstances in which, if one only adds the domain 
> to the domains table, and doesn't add an "alias=" to the core 
> configuration, it will break? Is it necessary to have an alias for 
> every domain, or only the primary hostname?
>
> Thanks
>
> Greg
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users