I am using Ubuntu 11.10. I use Mozilla 17.0.1 as my browser.
I have been noticing this incident for the past few days.
Even when my browser is not downloading anything or if I have closed the Mozilla browser, the system monitor shows bytes being received.
I checked the update manager: It shows that "package information was updated 2 hours ago" etc. So I assume that it is not the update manager which is trying to download something.
My question is
1)is it because of some virus? I have the UFW up and running. I haven't installed any other anti virus. Is it really required on Linux variants?
2)How can I see the details of what UBUNTU trying to download?
3)If there are such downloads, does Ubuntu maintain a log of such events or downloads.
4)Is there any way to know to which location is the files being downloaded?
5)What should I do to prevent such downloads which are not initiated by the User by a command or other means.
Every time such a download happens, I have to disconnect from the Internet," remove" the the 3G USB DONGLE from the laptop.
When I reconnect, the downloading had stopped and things are back to normal.
Simply disconnecting from the Internet and reconnecting doesn't seem to help most of the time.
Only when I remove the dongle from the machine and connect it back, such downloading stops.
I am using a 3G service to connect to the Internet and these unknown sending/recieving of bytes is taxing my bandwidth on the Internet.
Operating system : Ubuntu 11.10. Upgraded from Ubuntu 11.04 via update manager
Laptop Make: Toshiba Satellite C650
Pentium Dual Core CPU@ 2.20 GHz
NOTE: I have asked the same question in "Networking & Wireless" Section. Sorry that I posted the question in the wrong section first.