I have read the basic instructions here:
I want to
sudo ufw default deny and then
sudo ufw allow ssh sudo ufw allow smtp sudo ufw allow www sudo ufw allow https sudo ufw allow imaps
to allow the services I need, am I missing anything ? I assume allowing
ssh will also allow
scp ? (heck I will allow sftp as well anyway).
However my problem is I am connecting remotely, so the only way I can do what I want is to actually do a
sudo ufw default allow then use a list of the services provided by
less /etc/services and deny each service individually?
This seems a pain as if I turn on the firewall with default deny it will boot me out of my ssh connection?
(also posted on askubuntu, not sure which is the best place)