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I recently installed ufw and gufw as the gui; I've attempted to set up my firewall in ufw, but to no avail. It seems like the firewall does not want to block any traffic regardless of the settings. I set it to deny outbound/inbound and I can still access the web without difficulty. What am I missing?
Firewall software will go through the list of incoming/outgoing rules top down and apply the first matching rule. Hence, in case the first rule ufw finds is the default rule: deny any incoming and outgoing traffic, it will do so. Trying to soften this rule later on will not have any effect. I am afraid you will have to consult the usfw manpages in order to find out how to make sure that the rules are created and stored in this order:
80 ALLOW IN Anywhere 443 ALLOW IN Anywhere 80 ALLOW IN Anywhere (v6) 443 ALLOW IN Anywhere (v6) reject any other requests
Yet, I am not sure whether blocking absolutely all outgoing packages is really what you want and need.
Enlightened by Lucid Lynx, enchanted by Maya, impressed by Petra.
I'm installed both Firestarter and GUFW, and have been unable to get either of them to work: every time I specify deny/allow, it does not follow through with instructions; as if I had done nothing. I've tried reinstalling, uninstalling, using UFW on its own, and vice versa. I need to get this resolved ASAP.
Last edited by xenopeek on Wed Feb 06, 2013 6:52 pm, edited 1 time in total.
Reason:Same subject, so topics merged.