How to use firewall to block specific sites and games?

(jayay) #1

I created a service named “youtube” in the firewall objects…

Then in the firewall rules. I create a rule for youtube’'UDP port 443.

I chose the action “Reject” but still I can access the youtube. I also tried “Drop” but still nothing happens. Can someone please help me or clarify how to properly block a site/games/downloads using firewall rules in the nethserver. Thank you…

(Ralf Jeckel) #2

Please have a look at nDPI-feature of nethserver-firewall:

Please note that nDPI is limited: no reject, no any, etc in rules.

Youtube is special to block. In my experice not only the nDPI-youtube-traffic has to be blocked, also the nDPI-QIC-traffic.

A list of protocols can be found here:

Good luck!

(jayay) #3

(Michael Kicks) #4

Firewall section is not the right tool.
ndpi addon could be a way (with bandwidth manager), another one could be the installation of proxy with content filter

(jayay) #5

I’ll do the things you guys told me. Thank you for the replies :slight_smile:

(André Wismer) #6


Another way to go would be putting in the DNS, pointing to your Nethserver or localhost.
The Nethserver could contain a custom error message in a virtual host (, telling users that youtube isn’t allowed in that environment.

Best would be several methods, combined.

My 2 cents