[SR-Users] Using Sip-Router Logging & Register Problem Problem

Faisal Yousuf faisal.yousuf at gmail.com
Tue May 29 15:00:24 CEST 2012


Hi Daniel,
Many thanks - local firewall it is my bad - I thought the fact packet
sniffer can see the packet - there is no network firewall blocking the
packet - but there was an IP-Tables on the host - I shutdown the ip-tables
& now the registration is going through & I am also able to send calls
between subscribers . The log_stderror=yes is working now I can get the
error messages on the console (but for that I have to start kamailio by
typing kamailio - when I start using service kamailio start I dont get any
log messages).

Thanks its a step forward - I will review the config again for syslog
configuration as for troubleshooting its better to have the logs dumped to
a file rather then on std_error.

BTW: If you can point me to some good tutorials regarding
load-balancer(dispatcher module) it will be great -

Regards,
Faisal



On Tue, May 29, 2012 at 5:32 PM, Daniel-Constantin Mierla <miconda at gmail.com
> wrote:

>  Hello,
>
> I could not spot if you checked for presence of a firewall. If you don't
> get any log message from kamailio, it is very likely the sip traffic is
> blocked -- be aware that packet sniffers grab them from the network before
> local firewall rules.
>
> You can also set log_stderror=yes and the log messages should be printed
> to the terminal, in this way you don't care if syslog is configured or not
> properly, just o be sure there are log messages. Then you can get back to
> syslog.
>
> Cheers,
> Daniel
>
>
> On 5/29/12 12:55 PM, SamyGo wrote:
>
> Change the L_WARN to L_NOTICE that makes a difference when you've
> different debug=x value.
> and yes you are right about the  "-" in -/var/log/kamailio , it is really
> required to prevent kamailio from waiting on syslog to print lines and then
> continue.
>
>
> On Tue, May 29, 2012 at 3:52 PM, Faisal Yousuf <faisal.yousuf at gmail.com>wrote:
>
>> While I didnt  restarted my syslog (as the config were there from before)
>> - but I did check after restarting syslog
>> regarding using xlog - I have 3 xlog messages in my route logic around
>> Registration
>>
>>  # handle registrations
>>  xlog("L_WARN","Code before Registrar");
>>  route(REGISTRAR);
>>  xlog("L_WARN","Code after Registrar");
>>
>>  I also have a log message at the start of the route
>> xlog("L_WARN","Begin Routing");
>>
>>  regarding the hyphen I checked removing the hyphen but based on my
>> understanding from the link regarding enabling logging the hyphen enables
>> asynchronous logging
>>
>>  Anyhow even after all these I still dont see any logs.
>>
>>  Regards,
>> Faisal
>>
>>
>> On Tue, May 29, 2012 at 3:33 PM, Charles Chance <
>> charles.chance at sipcentric.com> wrote:
>>
>>>  Hi Faisal,
>>>
>>> You say you added to syslog.conf: local1.* -/var/log/kamailio
>>>
>>> Is that exactly how it appears? If so, I think you need to remove the
>>> hyphen so it becomes: local1.* /var/log/kamailio
>>>
>>> As Sammy said, don't forget to restart syslog.
>>>
>>> Regards,
>>>
>>> Charles
>>>
>>>
>>>
>>> -----Original Message-----
>>> *From*: SamyGo <govoiper at gmail.com <SamyGo%20%3cgovoiper at gmail.com%3e>>
>>> *Reply-To*: SIP Router - Kamailio (OpenSER) and SIP Express Router
>>> (SER) - Users Mailing List <sr-users at lists.sip-router.org<SIP%20Router%20-%20%22Kamailio%20%28OpenSER%29%20and%20SIP%20Express%20Router%20%28SER%29%20-%20Users%20Mailing%20List%22%20%3csr-users at lists.sip-router.org%3e>
>>> >
>>> *To*: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) -
>>> Users Mailing List <sr-users at lists.sip-router.org<SIP%20Router%20-%20%22Kamailio%20%28OpenSER%29%20and%20SIP%20Express%20Router%20%28SER%29%20-%20Users%20Mailing%20List%22%20%3csr-users at lists.sip-router.org%3e>
>>> >
>>> *Subject*: Re: [SR-Users] Using Sip-Router Logging & Register Problem
>>> Problem
>>> *Date*: Tue, 29 May 2012 15:27:06 +0500
>>>
>>> Did you restart your syslog ? Add xlog lines in yur config when you
>>> receive a REGISTER request so that it actually prints something out.
>>>
>>> On Tue, May 29, 2012 at 3:23 PM, Faisal Yousuf <faisal.yousuf at gmail.com>
>>> wrote:
>>>
>>> Hi  Daniel/ Sammy ,
>>>
>>>  I made the changes in config as suggested (i.e. move the define
>>> variables at the top of the file rather then in the middle)
>>>
>>>  Regarding setting debug=3 => I am setting WITH_DEBUG in the config file
>>> so based on processing of this symbol I believe debug=4 is set.#
>>>
>>>
>>>
>>>  For the log facility in the kamailio.cfg I have set the
>>> option log_facility=LOG_LOCAL1
>>>
>>>
>>>
>>>  & in my syslog.cfg (attached again) I have set the following
>>>
>>>  local1.* -/var/log/kamailio
>>>
>>>
>>>
>>>  but still I dont see any logs in this location when I start kamailio
>>>
>>>
>>>
>>>  I can see the kamailio process - (in total there are 19 processes here
>>> is the root process all other are child processes of this process)
>>>
>>>  kamailio  3375     1  0 08:06 ?        00:00:00
>>> /usr/local/sbin/kamailio -P /var/run/kamailio.pid -m 32 -M 4 -u kamailio -g
>>> kamailio
>>>
>>>
>>>
>>>  I can also see kamailio starting to listen on port 5060 port on the
>>> local machine on both UDP & TCP interfaces
>>>
>>>
>>>
>>>  I am using an xlite phone on windows to attempt to register - on my
>>> Kamailio VM (using UDP) I started a tcpdump to see if I am receiving the
>>> Register messages - I can see the register packets coming to the Kamailio
>>> hosts from the phone - but I dont see any responses from Kamailio.
>>>
>>>
>>>
>>>  Also as there are no logs I dont know what is going wrong.
>>>
>>>  Regards,
>>>
>>>  Faisal
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>  On Tue, May 29, 2012 at 2:37 PM, SamyGo <govoiper at gmail.com> wrote:
>>>
>>> Hi Faisal,
>>>
>>>
>>>
>>>   You say you've seen packets on kamailio but kamailio isn't replying
>>> !!
>>>
>>>
>>>
>>>   1- Please verify that yuor kamailio is indeed started  *[ps -ef |
>>> grep kamailio]*
>>>
>>>   2- Verify if kamailio is actuallay listening on the same port as you
>>> are sending pcakets to ! *[netstat -pln|grep kamailio]*
>>>
>>>   3- Verify if your kamailio is using the same protocol as of your
>>> client i.e TCP or UDP or TLS etc.
>>>
>>>   4- instead of viewing the file* /var/log/kamailio* see*/var/log/messages
>>> *because you haven't mentioned local7 as Log facility in your config.
>>>
>>>   I don't see your syslog*.conf * file in this mail! check that file
>>> and follow the referenced link<http://www.kamailio.org/dokuwiki/doku.php/utils:basic-syslog-configuration> completely.
>>>
>>>
>>>
>>>
>>>   Also see your configurations kamailio.cfg file and use define tags
>>> from second line from top onward i.e just after #!KAMAILIO.
>>>
>>>    Try getting rid of the comment line "*####### Defined Values
>>> #########*" - in my experience such comment before define cause trouble
>>> with configurations.
>>>
>>>
>>>
>>>
>>>
>>>   See all these and then reply with updates.
>>>
>>>
>>>
>>>   Regards,
>>>
>>>   Sammy G.
>>>
>>>
>>>   On Tue, May 29, 2012 at 2:18 PM, Daniel-Constantin Mierla <
>>> miconda at gmail.com> wrote:
>>>
>>>   Hello,
>>>
>>> you can set debug=3 in kamailio config to see very verbose debug
>>> messages. If you don't get any, means the request does not reach the
>>> application layer, meaning you have a firewall in place that drops the
>>> packets from the network.
>>>
>>> Cheers,
>>> Daniel
>>>
>>>
>>>
>>>    On 5/29/12 8:02 AM, Faisal Yousuf wrote:
>>>
>>>     Hi Experts,
>>>
>>>     I am a newbee with SIP-Router/Kamailio - I installed Kamailio on a
>>> CentOS 5.5 VM - following the instructions from the following link
>>>
>>>
>>>
>>>     http://kb.asipto.com/kamailio:install:3.0.x-from-git-centos5x
>>>
>>>
>>>
>>>     Kamailio is installed & I can start kamailio deamon from service
>>> kamailio start
>>>
>>>
>>>
>>>     However I also created two subscribers - but when I try to register
>>> my SIP Phone (by setting Kamailio as the domain to register to) - I can see
>>> my sip-phone sending the Register request to Kamailio (I put a tcpdump on
>>> the kamailio machine to see sip-messages reaching the host) but I dont get
>>> any response from Kamailio - so my sip phone reaches the 408 Registeration
>>> Timeout state.
>>>
>>>
>>>
>>>     Now, I dont get any logs from Kamailio to know what is happening
>>> while my phone is sending the register request - I tried to configure
>>> logging following instructions from the following link
>>>
>>>
>>>
>>>
>>> http://www.kamailio.org/dokuwiki/doku.php/utils:basic-syslog-configuration
>>>
>>>
>>>
>>>     But I dont get any logs in the /var/log/kamailio log file.
>>>
>>>
>>>
>>>     To assist in understanding the issue - I am attaching the syslog
>>> config , kamailio config file & the kamailio service script in the init.d
>>> folder.
>>>
>>>
>>>
>>>     My first objective will be to enable logging for kamailio & the
>>> next objective is to get the basic registration & routing between endpoints
>>> - my ultimate objective is to configure SER/Kamailio as a load-balancer for
>>> our B2BUA & Media Servers (I found the dispatcher module can help in
>>> accomplishing this) -  Can anybody help me in identifying why I am not
>>> getting any logs ?
>>>
>>>     I have already seen the wiki & have developed some understanding
>>> regarding how Kamailio is configured but am I seeking more information
>>> regarding the route language - (the state-model + reference of the
>>> functions that can be used in the route script etc.) - in this regards if I
>>> can get any documentation pointers from the user community that can help me
>>> gain a better understanding the use of Kamailio for above it will be great
>>>
>>>
>>>
>>>     Regards,
>>>
>>>     Faisal
>>>
>>>
>>>
>>>     Regards,
>>>
>>>     Faisal
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>     _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>> -- Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/micondaKamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 - http://asipto.com/u/katu
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>
>> _______________________________________________
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>> sr-users at lists.sip-router.org
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
> Kamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 - http://asipto.com/u/katu
>
>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
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