New subject: [Serusers] monitoring SER

28 Nov 2003

Hi!

Some time ago, I've tried to use "mon" (
http://www.kernel.org/software/mon/ ) and the TCP monitor to send a
INVITE message (to a non existing user) to the proxy and waiting for a
404 reply. mon was installed at the same server as ser, and if there was
no 404 coming back, I restarted ser.

Furthermore, I installed ser at two PCs which monitored themselfs using
heartbeat ( http://www.ultramonkey.org/2.0.1/ ). ser was only runnning
at one PC and if heartbeat detected a failure of the main PC it started
ser at the bakup PC and overtook the IP address of the failed server.

My results were:
1. ser never failed -> mon never had to restart ser
2. heartbeat failed very often -> both servers were running ser und
using the same IP address

regards,
Klaus

...
  -----Original Message-----
 From: Alexander Mayrhofer [mailto:axelm@nic.at] 
 Sent: Thursday, November 27, 2003 4:13 PM
 To: serusers(a)lists.iptel.org
 Subject: [Serusers] monitoring SER

 Hi,

 I'm thinking about how to monitor a running SER installation 
 end-to-end
 (which may include an authentication source, a NAT traversal box etc.)

 My preferred solution would be to use Nagios (http://www.nagios.com),
 and let a Nagios plugin do e.g. a REGISTER/(de)REGISTER every few
 minutes.

 Has anybody made any efforts to write a SIP plugin for 
 Nagios? Any other
 solutions you are using to monitor SER?

 thanks & cheers

 axelm

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