I am trying to find a solution to monitor the amount of bandwidth each virtualhost on my web servers are using. I can already figure out the total amount of bandwidth they accumalate through the logs.

But what I cant find a solution for is what are the peak rates they are using during a given period, ie.. they did 1.5Mbit/s transfer rate last week.

Like right now I can look at the MRTG graphs and see one webserver is getting 660Kbit/s of traffic, but I can't see which site/sites are generating that traffic. I can use mod_status to see get an idea of which sites are being hit heavly, but no indication of how much of that 660Kbit/s a site is using.

I have ntop running which will give a general idea, but it can only update virtualhost stats after the connection is closed, so it's not realtime and not accurate enough for billing purposes.

I've looked at all the various bandwidth modules for Apache, but they are all geared to limiting bandwidth. mod_throttle had a way of keeping track of this kind of info, but it is no longer available in Debian or at the site.

So if anybody has any suggestions, solutions, any help would be greatly appreciated.


Oh and Happy Birthday Debian!