| deb http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse | |
| deb-src http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse | |
| deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse | |
| deb-src http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse | |
| deb http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse | |
| deb-src http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse | |
| deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse |
| #You probably want to do this in root to reduce the amount of sudos required | |
| su - | |
| #Install iptables if you haven't already | |
| #Alternatively use packet manager of your choice | |
| apt-get install iptables | |
| #Allow all incoming traffic to begin with | |
| iptables -P INPUT ACCEPT | |
| #Clean out any existing input rules. You may also remove the "INPUT" argument and run only "iptables -F" to clear all chains. When doing so, make sure there are no rules in other chains that you still need (list via "iptables -L"), for example Oracle cloud servers will have preset rules, which should not be removed. |
$mod refers to the modifier key (window/command or alt by default depending on config)
startx i3 start i3 from command line$mod+<Enter> open a terminal$mod+d open dmenu (text based program launcher)$mod+r resize mode ( or to leave resize mode)$mod+shift+e exit i3