How to disable unnecessary connections and traffic leaks in linux mint 18.1?

Question

mint

The problem with accessing the Internet in Linux minutes 18.1. A lot of traffic flies away in a short period of time, even if the browser is not running, the traffic is still consumed. Updates installed. Wireshark shows up to a bunch of connections from different ip protocols dns, ntp. By. Ntp is loading some data. You can view binary files, but I don't know how to read them. A lot of ports are open from 5000 to 5099. What can be done to cover the holes in the system?

Answer 1

If I'm not mistaken, Firewall - "Gufw" is installed out of the box in linux mint.
What's stopping you from using it?

Answer 2

turn off paranoia.
you have no holes, everything is regular