[SR-Users] Avoid resolving names by DNS

Santiago Soares santiagosoares at gmail.com
Wed Sep 1 17:10:09 CEST 2010


Hello,

I'm using kamailio as a simple load balancer.
My dispatcher list is something like that:

1   sip:server1:5060
1   sip:server2:5060
2   sip:server1:5060

and /etc/hosts is

10.1.1.1   server1
10.1.1.2   server2

When I want to do some maintenance task in one of the servers, server2, for
exemple, I simply change /etc/hosts like that:

10.1.1.1   server1
10.1.1.1   server2

And all the traffic is redirected to server 1. It's a simple yet effective
way to remove a server from balancing.
The thing is that it works on kamailio 1.5.3, but on kamailio 3.0.3 it
doesn't work, since kamailio appears to resolv names only by DNS.
I receive this message on startup:

Sep  1 12:04:32 install /usr/local/sbin/kamailio[16077]: ERROR: dispatcher
[dispatch.c:241]: could not resolve server1
Sep  1 12:04:32 install /usr/local/sbin/kamailio[16077]: ERROR: dispatcher
[dispatcher.c:247]: no dispatching list loaded from file
Sep  1 12:04:32 install /usr/local/sbin/kamailio[16077]: ERROR: <core>
[sr_module.c:874]: init_mod(): Error while initializing module dispatcher


Is there any way to avoid this behavior, and force kamailio to use
/etc/hosts?

Thank you.

Santiago Soares
Fone: (41) 8488-0537
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