Network Service Monitoring

[ar1]

Hi,

I'm looking for a free (and preferably open-source) program to monitor services (like http, imap, pop, etc.) on hosts on the internal network. The program should be able to alert me (email or txt message) when something goes down.

Was wondering if you guys know of anything. Note that I don't need any other features (it'll be run on a slow box and I already have traffic monitoring with Cacti so a plugin for it would be fine), which is why I'm disinclined to use Nagios. Also, the hosts will not be running SNMP daemon.

Thanks,

Aditya

[AndyStewart]

Search the forum for the "manage" plugin - think that should do what your after....

[ar1]

Ah, thanks AndyStewrat. That's indeed a nice plugin. Now, it appears that this plugin checks the port using SNMP or ping. But I'm told by a co-worker that for services like smtp, problems most often arise even while the service is running. The guy told me that programs like Big Brother actually send a mail through the mail server (and analagous actions for other services) to check the status.

Do you guys think that it's worthwhile using this plugin or is something like Big Brother significantly better?

Thanks

[knobdy]

Nagios is free and will do everything you ask for - plus there's a cacti plugin for it (though its development seems to be stalled, the plugin's that is).

nagios.org