bandwidth monitoring

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#1 Wed, 05/13/2009 - 02:11
phynias

bandwidth monitoring

hi, i had some unusual bandwidth usage spikes (GBs) lately and am trying to find out which service they refer to.. i have bandwidth monitoring enabled and used that to find out about those spikes in the first place.. now i tried to narrow down the services that use up that bandwidth by filtering traffic by internal port.. to find all open ports i used a port scanner returning the usual: 21, 22, 25, 53, 80, 110, 143, 443, 554, 993, 995 + webmin/usermin ports.. the problem is that when i enter each of those ports, one after the other, into the bandwidth monitoring tool to filter by 'internal port' and sum up the bandwidth usage i get around 500MB in total for this morning.. however when i let it show 'everything' i get 20GB.. i can't work out where that's coming from.. any ideas how to find out more?

Thu, 04/10/2008 - 13:46
phynias

nm, i see now that it only shows the parent server. i could have sworn at one point it showed it for each parent and subs<br><br>Post edited by: phynias, at: 2008/04/10 13:50

Thu, 04/10/2008 - 17:30 (Reply to #2)
DanLong

If you note above the graph there are tabs for parent server, parent and sub, month, date

Wed, 05/13/2009 - 05:54
andreychek

Howdy,

Virtualmin keeps track of Web, Email, and FTP traffic on your server, and distinguishes between it all.

So if you are hosting "example.com", and someone started sending out a ton of email, that's going to show in the Virtualmin logs as email traffic in the example.com Virtual Server.

You can view that in System Settings -> Bandwidth Monitoring -> Show Usage Graph. Then I usually click "Parent and sub-servers".

It'll show whether it's web, email, or ftp traffic based on the color of the graph.

That much helps you nail down roughly where the usage is -- from there, you'll probably need to go to the logs to dig up more info once you know what logs to look in.
-Eric

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