Date: Mon, 30 May 2016 11:07:46 +0200 From: Ben Woods <woodsb02@gmail.com> To: Yuri <yuri@rawbw.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Is there a way to keep an account of which processes generate how much network traffic? Message-ID: <CAOc73CDN3-qq9OPq-hT1Pn5tD-D6UrGAbDaScQ%2BXsKzW_grzbw@mail.gmail.com> In-Reply-To: <b4fd52e8-5b9b-aa85-e1ac-1c7a461f381d@rawbw.com> References: <b4fd52e8-5b9b-aa85-e1ac-1c7a461f381d@rawbw.com>
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On Monday, 30 May 2016, Yuri <yuri@rawbw.com <javascript:_e(%7B%7D,'cvml','yuri@rawbw.com');>> wrote: > There is vnstat that does this by interface. > > But is there a way to do this by the application? This is because nearly > every packet that is sent through the system is sent on behalf of some > process running on the system. > > It would be nice to be able to see which applications (in general sense) > generate most traffic. > > I am fully aware that the link between pid and an "application" is vague > because some processes are run through some cryptic command lines. I am > just interested if anything exists in this area at all. > > > Yuri > Hi Yuri, There is an application called nethogs which does this on Linux, but the website says it makes heavy use of Linuxisms so won't work on BSD. I had a quick look at the code and couldn't immediately recognise the Linuxisms in question, but haven't done a thorough look. On FreeBSD, I tend to filter traffic by src and destination ip/port to determine how much traffic an application is using. Easiest solution I can think of: Use net-mgmt/darkstat. https://unix4lyfe.org/darkstat/ Slightly more complicated solution, but with potentially more power for filtering the data: Netflow/NfDump/NfSen https://forums.freebsd.org/threads/49724/ Good luck! Regards, Ben -- -- From: Benjamin Woods woodsb02@gmail.com
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