[Serusers] Problem with 'ser'?

[Klaus Darilion]

Hi Kjell!

comments inline

On Sat, 08 Nov 2003 21:43:13 +0100, Kjell Mathiesen wrote
> I downloaded the SIP Express Router on Nov. 6.  I run a VoIP course 
> (among others) and want a SIP application to show to my students and 
> I found yours interesting.  However, I ran into an obstacle, 
> possibly a problem/bug. The details:
> 
> System:         Red Hat 7.3 Personal on a 200 MHz Intel
> 'Ser' distr.:   0.8.11 RPM-package for RH 7.3
> Clients using Windows Messenger
> Ser.cfg:        As distributed but with option <alias="matell5.no">  
> added 
> (in front of the 'check_via' option.  Works fine. <km at matell5.no> 
> and others with the same domain can sign in, contact with other 
> clients established etc.
> 
> Then I add another domain to 'alias' as in <alias="matell5.no" 
> "f19-21.no">. 'ser' starts OK ('ser start' reports [OK] and 
> /var/log/messages says 'ser' is listening on all IP adresses and 
> both aliases are listed and "ser startup successful").  However, 
> attempted sign-in from clients (with the same domain name as earlier)
>  result in ICMP Destination Unreachable/Port Unreachable (port = 
> 5060) and an attempt to stop 'ser' ('ser stop') reports [Failed] and 
> /var/log/messages says "ser shutdown unsuccessful".

ICMP unreachable means, that ser is not running. this may be caused by an
error in the config file or due to some other reason. watch the logging during
startup on another console, as root type:
tail -f /var/log/messages

I use the alias command just before the module loading and it works fine for
me, also with several domains, e.g:

fifo="/tmp/ser_fifo"
alias=obelix.ict.tuwien.ac.at
alias=xyz.ict.tuwien.ac.at

# ------------------ module loading ----------------------------------


> 
> I have also tried using two lines for the 'alias' parameters (<alias 
> "matell5.no" \n alias "f19-21.no"> with the same results.
> 
> Then I remove one 'alias' to return to the successful 'ser.cfg'  
> with only one 'alias', and I get the same IMCP message (Port 
> Unreachable).
> 
> Then I reboot the computer (no further changes to 'ser.cfg') and the 
> clients can sign in without a hitch.
> 

sometimes ser does not start (reported several times on the mailinglist,
mostly at redhat systems). you can easy verify if ser is running by:
ps -A

Then you should see a lot of ser processes running.

regards,
klaus

> The 'ser' Admin's Guide chapter 6.1 'Core Options' clearly indicates 
> that the 'alias' option can take several domain names. (It actually 
> says hostnames. I tried 'mytikas.matell5.no' which is name of the 
> machine 'ser' is running on but this caused the same erroneous 
> result as above.  Changed it back to just the domain name and I 
> could sign in normally again.
> 
> If I am doing something wrong here (or not doing something I should 
> be doing) I would appreciate if you would tell me.  I am relatively 
> new to Linux and Linux applications and sometimes find the 
> documentation difficult to understand.
> 
> If you want me to supply more information like logs etc. let me know 
> (if this really is a bug you probably will).  I'll be happy to do 
> more testing/experimenting.
> 
> I am not running mysql.  I'll try that next.
> 
> Thanks.  (Hope I am sending this to the right place.)
> 
> Kjell Mathiesen
> Matell Software AS
> Fururabben 19
> 1361 Østerås, Norway
> 
> Tel.   (+47) 6714 6509
> Mob: (+47) 9073 2212
> km at matell.no
> www.matell.no 
> 
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