Debian what is using my bandwidth?

Seems like something is using the network, but you aren't sure what? If you are on dial-up it really sucks. For me, it was Tor, the privacy software; it loads a directory every time it starts, and the filesize is huge. Since I have debian, it was part of privoxy and happened in the background. Here is how I found it.

1. run wireshark to get the originating IP address.
2. run whois on the IP address

In my case it turned out to be a Tor server, so I removed tor. Now my network idles again.

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