Change UFW config or disable Firewall on your server mount Raid

Sometimes it can happen that you have not configured your firewall correctly and locked yourself out so that the server is no longer accessible. Activate rescue CD and restart server with Linux 64 bit.

Lsblk





mkdir /media/mydrive

mount /dev/md2 /media/mydrive

ls /media/mydrive


Now you can access config files in your main operating system.
UFW configs you can find in Ubuntu


vim /etc/ufw/user.rules


So you can reach it in this way.


vim /media/mydrive/etc/ufw/user.rules


Then you can add rules with your own IP and restart the server…
Or you can disable UFW with


vim /media/mydrive/etc/ufw/ufw.conf