All you need is at below link, I already search and download it from there. Just follow the link given below:-
- Nagios 2.0 [ stable verison ] or you may choose Current release at your own RISK
- You must download Official Nagios Plugins also
- QmailRock ; I'm using qmail to replace standard sendmail, you may not download this
- If plan to replace sendmail, please prepare your mental . You may need more than a weeks to setup and make sure qmail run. Install qmail itself is very easy, but prerequisite requirement you need to follow. My advice, read "README" before you proceed.
- Daemontools-0.76 ; You need this ... For Monitoring and logging
- ucspi-tcp-0.88
- Fedora ; If you don't know which linux you want to use, download this linux version
- I'm Using Fedora Core 6 [ old version] which my friend already download it.
- And I install it on old machine, IBM eserver , CPU Pentium 4 2.80 GHz, RAM 512 MB