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Sorry for the paranoid question but is it possible to block all connections except for Firefox and updates? And if so does someone got a terminal code for it?

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  • I would at least add dns traffic to your allow list else there is not much to surf :-)
    – Requist
    Feb 27, 2014 at 18:06
  • Ok sorry im kind of new to all of this so, but if you know a way to achieve this than can you please tell me ??
    – user253005
    Feb 27, 2014 at 18:13
  • I find the question too big, making a complete answer on this and test it would take me too long. I can give a possible solution on how you would be able to program a script allowing you to do this, but I am not gonna make it for you.
    – Requist
    Feb 27, 2014 at 18:22
  • Ok thanks anyway for helping me i now got Gufu installed and it let me make rules for programs but i cant find firefox in it but is this a way to achieve this ?
    – user253005
    Feb 27, 2014 at 18:29
  • If the actual question is how to close all traffic except for browsing, please update your question accordingly else the question and answer do not match.
    – Requist
    Feb 27, 2014 at 18:51

1 Answer 1

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Install the software called Uncomplicated Firewall. Open it and select "block all traffic". Then create rules for TCP/UDP to ALLOW OUTGOING dns and http (DESTINATION port 53, port 80 and port 443).

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  • That was not the question, it allows all traffic with port 80, not just firefox.
    – Requist
    Feb 27, 2014 at 18:24
  • I bet he meant that he just wants to allow web traffic through.
    – aroll605
    Feb 27, 2014 at 18:28
  • Yes, thats correct and i now got gufw installed and reject in and outgoing traffic so i now only have to make some rules for Firefox updates doesn't have to because i can simply set the firewall to allow traffic when i want to install updates. So if someone go the port of Firefox than i can make a rule in Gufu :)
    – user253005
    Feb 27, 2014 at 18:33
  • Yup, pretty much. Watch out for your firewall logs though and make sure that important stuff does not get denied access, like security updates that may use different ports.
    – aroll605
    Feb 27, 2014 at 18:36
  • Ok but will it only allow firefox or will it also allow other applications i now got the following rule and it seems to work on firefox and block software center : 80,443/TCP Allow out Anywhere out
    – user253005
    Feb 27, 2014 at 18:56

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