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Okay so if you use iptables from the command line you they don't get restored on reload or reboot. You can ever set your firewall rules with ufw instructions here or if you really need to use iptables you need to save your rules to file and have them restored back before your network comes up, you should also disable ufw as bodhi.zazen suggested so: sudo ...


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Almost every access list is by default ended with deny all all. When you enable ufw width any rules to allow some traffic all is in deny state. Status: active To Action From -- ------ ---- 69 ALLOW Anywhere 53 ALLOW Anywhere 22 ...


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There is a /usr/share/ufw/check-requirements script that checks for everything needed for ufw to work. You'll get hints about what's missing. ufw is not meant to work without the full iptables/netfilter build in the kernel or loaded by modules. If you can't build a new kernel, you're in for some trouble. The post you linked tries to go around these ...


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+1 for Simon's answer above. I was looking for that piece of information hard. I want to highlight the answer to make it easier to notice: sudo ufw show added


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From what I can tell dnsmasq uses port 53 tcp/udp, as well as port 67/udp dhclient by default uses port 68/udp So a generic way to get this setup would be sudo ufw allow to any port 53 sudo ufw allow to any port 67 proto udp sudo ufw allow to any port 68 proto udp Or if you want to just open these ports for a particular IP address (not sure if you ...



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