could any one tell how could I monitor the bandwidth usage of a http server using nagios?? I am in need of great help. I am beginer in nagios and just started using the given default commands in nagios.
you shouldn't be using nagios for this.. you need an http statistics analyzer. Nagios can check the total traffic on an interface but it doesn't know what is http and what is used for other protocols.
Have a look at awstats if you look for an http log analyzer.
ntop might be the answer for that I think
nagiostat can be used to monitor the traffic on an interface, but as luca pointed out, this is the total usage. Which, might be all that is really wanted anyway.