I'm sure I'm doing something wrong. I'm expecting my current rules of "denying all incoming/outgoing" to cripple anything network related, but it's not.
First, I did:
sudo ufw default deny incoming sudo ufw default deny outgoing
And then I checked it:
sudo ufw status verbose Status: active Logging: on (low) Default: deny (incoming), deny (outgoing) New profiles: skip
Looks good, and then I reloaded it:
sudo ufw enable sudo ufw reload sudo service ufw restart
Yet, I'm able to post this on the interweb and do everything else.