Bandwidth monitor for a server with many virtual hosts

[John Van Ostrand]

On Wed, 2007-08-15 at 13:46 -0400, Madison Kelly wrote:
>    Until now, I have not worried about how much bandwidth various 
> customers whom we host use. Now that our number of clients grows though, 
> I need to start tracking who uses how much bandwidth.
> 
>    What do you guys here use to log bandwidth usage? Our clients use 
> mail, web and can copy data to/from the server via scp/rsync. I suspect 
> I could hack up something using TCP dump, but I really doubt I could 
> come up with something elegant and efficient. :)

Do all of your virtualhosts use separate access_log and error_log files?
That would make it easy to parse those for bytes transferred. It's won't
take into account TCP overhead, but it would allow you single out a busy
host.

Have you taken a look at ntop and apachetop? Ntop can classify traffic
by service (http vs. smtp vs pop vs https, etc) and by IP address.
Apachetop shows you top-like stats on web page hits by tailing
access_logs. Again not really what you are looking for but I thought I
would offer it.

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