Hi there.
I'm new to linux so i hope i can get help here.
I've installed Nagios on SLES 10.1 and it works great.
Now I need to send sms messages.
I use an sms gateway and my url looks like this:
http://servername:8080/pa/mirs?user=...essage=message
I need to write a script that sends sms messages to 3 different phone number and to create the Nagios command that will automatically do it when a host is down.
I've searched the web but I haven't found any thing that can work for me.
I'll appreciate any ideas or a direction on how to go on cause at this point I'm quiet frustrated.
Thank You.

Since it's you writing the script you'll want some Bash scripting guides:
http://www.tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html
http://www.tldp.org/LDP/Bash-Beginne...tml/index.html
http://www.tldp.org/LDP/abs/html/


Three easy steps:
0) Read the Nagios documentation and configuration files. They're littered with examples you can modify.
1) Create an alert for a host and make it send an email to an unprivileged user account on the monitoring host.
2) Make a procmail recipe that triggers your script.

Alternatively you could use Monit instead of Nagios. Monit can poll remote hosts and services, uses one configuration file and can trigger scripts directly.