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


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