which pgm is accessing the net?

[rikona]

On Mon, 4 Jan 2021 08:33:28 +0100
Ralf Mardorf via ubuntu-users <ubuntu-users at lists.ubuntu.com> wrote:

> On Sun, 3 Jan 2021 20:43:31 -0800, rikona wrote:
> >Still have perhaps 50 pages or so open in several browsers, which
> >seems like a likely candidate, but all ads, on-page videos, etc have
> >been stopped.  
> 
> I seriously doubt that pausing a video does stop a flash player from
> causing traffic, assuming it's software from Adobe or Google. In my
> experiences there's no "stop", let alone an "off" option. I usually
> see a "pause" or "play" button only. FWIW at least Firefox re-enables
> google crap all the time, see about:config, "safebrowsing" is for
> "it's safe that Google can spy you", so it's unlikely that a media
> player mainly aimed to show advertising, doesn't do something evil in
> the background, even if it doesn't play a video. "Skip ad in n
> seconds" and be ready for the next ad our algorithm will assign to
> you, based on the data mining our "gratis" services and programs do.

That's kinda my view also, and why I was asking if there's a way to
identify **exactly which program** is accessing the net, preferably with
an IP address and a pid so I can tell which part of a multi-part pgm is
responsible.

How can I do that?