[SR-Users] Kamailio 4.0.0 not listening on TCP

[David Wilson]

Hi Carsten,

I would expect that if it didn't have children, it wouldn't report that it's listening.

However, you have asked the right question...

On my command line, I was using the -D flag to prevent daemon mode.  When I configure to ONLY listen for tcp, I get:
> Listening on 
>              tcp: 192.168.44.66:55060
> Aliases: 
>              <snip>
> 
> WARNING: no fork mode and no udp listen address found

With that clue, I tried it without the -D flag, configured for both tcp and udp... now it is verifiably listening for tcp!

So, it turns out that with -D, the report that it is listening is inaccurate.

Thanks for your suggestion!

Dave.


On 12/04/2013, at 4:48 PM, Carsten Bock <carsten at ng-voice.com> wrote:

> "WARNING: no fork mode"
> 
> So you'll probably don't have any children for TCP...
> 
> Kind regards,
> Carsten
> 
> 2013/4/12 Jeremy Ardley <jeremy.ardley at gmail.com>:
>> netstat is a bit tricky. Luckily it's now obsoleted by ss
>> 
>> Try
>> 
>> netstat -a -n | grep 5060
>> 
>> Also check if your kamialio.cfg file has "disable_tcp=yes" Comment it
>> out if it does.
>> 
>> P.S. I only asked about whether it was still running because it can
>> easily die on startup if the scripts detect some error like the control
>> files still exists. I just checked now on my system which I installed
>> using 'official' RPMs for Centos 6. The 'service kamailio restart'
>> command appears to work but fails quietly for the following reason
>> 
>> Apr 12 14:55:40 sentinel /usr/sbin/kamailio[7501]: ERROR: ctl [ctl.c:379]: ERROR: ctl: could not delete unix socket /tmp/kamailio_ctl: Operation not permitted (1)
>> 
>> 
>> On 12/04/13 14:37, David Wilson wrote:
>>> Hi Jeremy,
>>> 
>>> Thanks for the suggestion, I'm hoping I haven't overlooked something quite that obvious!
>>> 
>>> The last debug output I see on startup is:
>>> 
>>>> Listening on
>>>>             udp: 192.168.44.66:55060
>>>>             tcp: 192.168.44.66:55060
>>>> Aliases:
>>>>     <snip>
>>>> 
>>>> WARNING: no fork mode
>>>> 0(20372) INFO: <core> [tcp_main.c:4833]: init_tcp: using epoll_lt as the io watch method (auto detected)
>>>> 0(20372) INFO: usrloc [hslot.c:53]: locks array size 512
>>>> 0(20372) INFO: <core> [udp_server.c:179]: INFO: udp_init: SO_RCVBUF is initially 229376
>>>> 0(20372) INFO: <core> [udp_server.c:230]: INFO: udp_init: SO_RCVBUF is finally 262142
>>> netstat shows listening for UDP on 55060, but nothing on TCP:
>>> 
>>> $ netstat -l | grep 5060
>>> udp        0      0 192.168.44.66:55060 *:*
>>> 
>>> ps shows four kamailio processes running, all of which end when I Ctrl-C.
>>> 
>>> Cheers,
>>> Dave.
>>> 
>>>> Date: Fri, 12 Apr 2013 14:22:45 +0800
>>>> From: Jeremy Ardley <jeremy.ardley at gmail.com>
>>>> Subject: Re: [SR-Users] Kamailio 4.0.0 not listening on TCP
>>>> 
>>>> 
>>>> Have you checked to make sure it's still running?
>>>> 
>>>> 
>>>> On 12/04/13 14:19, David Wilson wrote:
>>>>> Hello All,
>>>>> 
>>>>> New to Kamailio, I'm running 4.0 on Ubuntu 12.04 (precise).
>>>>> 
>>>>> Running from the command line with a minimal config, it tells me that it is listening on port 5060 for both TCP and UDP.  I see the same behaviour with the default cfg.
>>>>> 
>>>>> However, netstat does not list anything listening on TCP port 5060 and an attempted connection is rejected consistent with there being no open socket.
>>>>> 
>>>>> Any suggestions on where I need to be looking to fix this?
>>>>> 
>>>> 
>>>> 
>>>> 
>>>> ------------------------------
>>>> 
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>>>> 
>>>> End of sr-users Digest, Vol 95, Issue 47
>>>> ****************************************
>>> 
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> 
> 
> 
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> CEO (Geschäftsführer)
> 
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