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Sudden Bandwidth Usage
| Posted by Serverji, 10-21-2010, 12:41 AM | | Hi
We have a Windows 2003 Server with HELM.
6 days back the outbound traffic usage on the server spiked from 5 GB to 300 GB per day and is same since that day.
Since its a shared server how can we check which file/program/domain is stealing the bandwidth ?
Thanks
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| Posted by sysadm2, 10-21-2010, 12:47 AM | | You can have a look in the /var/log/messages and also check the top output, so as to know the instance which is hogging more cpu resource and up for a long time.
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| Posted by sysadm2, 10-21-2010, 12:49 AM | | Also give a try, using ntop.
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| Posted by plumsauce, 10-21-2010, 12:51 AM | | umm.. since you are on windows forget the linux specific suggestion of looking at /var/log/messages since it does not apply.
Instead, look at your iis site logs. Something on one of the sites may be hotlinked.
Then, look at the output of "netstat -an" to find unusual connections.
You may want to set bandwidth quotas and see if some certain site chokes. When the customer complains, you know which one it is.
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| Posted by sysadm2, 10-21-2010, 12:55 AM | | Ohh..sheez! you are on windows machine! My mistake!
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| Posted by indjust, 10-24-2010, 11:37 PM | | You should look through your server logs/access logs and see who the culprit is.
You should either see Crawlers/Robots that are using up massive amounts of bandwith, and/or IP's. I can't say how to block user agents or ip's under windows, but i can recommend you get linux hosting.
Looking through your logs once in a while will give you an idea of what's going on, also it's probable that someone might be hotlinking, but 300 gigabytes from 5, is too much !
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