yesDo you turn it back on again via ..; sudo ufw enable ...?
Ubuntu 18.04 YesWhich OS are you running ? is it up to date ?
Yes, it some times not turns offAny other dramas/bugs/....?
yesAre you dual booting with windows??
sudo ufw status verboseand....how do you know it is off ?
chkconfig --list apf
Oh sorry,
forgot about that and try instead :
systemctl status apf
What´s Timeshift?and........just to really load you up......Do you have Timeshift enabled ?
No.Do you know how long this has been happening?
No.And can you remember any other programs that you may have installed in the same time period?
sudo add-apt-repository -y ppa:teejee2008/ppa
sudo apt-get update
sudo apt-get install timeshift
I have more commands to ask about their output, but I'll wait until the above pans out
Edit your configuration file /etc/ufw/ufw.conf as root and set ENABLED=yes: