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Re: Monitoring network activity



AG wrote:

Every now and again the lights on my broadband modem start flashing which indicates package transmission/ receiving. When I have deliberately started an application to access the web (e.g. web browser, email client, etc.) that's fine. I do get a little concerned however when the lights flash and I cannot find an app that is accessing/ receiving info from the web.

How would I go about finding out what application is connecting to the web and/ or what is connecting to my machine to cause the modem light activity? I've tried ps -A and ps -aux but this shows up a lot of info which makes it difficult to see any particular activity that may be responsible.
netstat and ntop can tell you a lot about network connections

I came across this recently, but haven't gotten around to trying it:
http://nethogs.sourceforge.net/

Which purports to tell you what individual programs are doing vis-a-vis the net - sort of lsof for network connections, and exactly what you're asking for.

Miles Fidelman


--
In theory, there is no difference between theory and practice.
In<fnord>  practice, there is.   .... Yogi Berra



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