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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 |
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#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. |