Hi Javier,
This is a normal warning message indicating that Kamailio can not resolve the IP addresses it is listing at but should not be the cause of the Kamailio starting failure.
I always use the kamctl start command to control the Kamailio service if the /etc/init.d/Kamailio start does not work and should work for you if you have no errors in the config file.
Best Regards.

On Nov 26, 2014 2:42 PM, "Javier Ricke" <javierr.vv@gmail.com> wrote:

root@serverjavier-desktop:/usr/local/etc/kamailio# kamailio -c
loading modules under /usr/local/lib/kamailio/modules_k/:/usr/local/lib64/kamailio/modules/
0(28734) WARNING: <core> [socket_info.c:1407]: WARNING: fix_hostname: could not rev. resolve 152.xxxxxxx
0(28734) WARNING: <core> [socket_info.c:1407]: WARNING: fix_hostname: could not rev. resolve 152.xxxxxxx
Listening on

lol is my ip
2014-11-26 9:35 GMT-03:00 Salman Zafar <msalman212@gmail.com>:
Hi,

For Start try
1) kamailio -c (to check if there are any errors in cfg file)
2) set debug=3 or 4 and see whats failing and requires to be fixed.
On Wed, Nov 26, 2014 at 5:32 PM, Javier Ricke <javierr.vv@gmail.com> wrote:
root@serverjavier-desktop:/usr/local/etc/kamailio# /etc/init.d/kamailio restart
Restarting Kamailio:
loading modules under /usr/local/lib/kamailio/modules_k/:/usr/local/lib64/kamailio/modules/
Listening on
udp: 127.0.0.1:5060
udp: 152.74.21.12:5060
tcp: 127.0.0.1:5060
tcp: 152.74.21.12:5060
Aliases:
tcp: localhost:5060
udp: localhost:5060

kamailio error, failed to start.

i dont know what happen plz!

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--
Regards

M. Salman Zafar
VoIP Professional
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