I run Lubuntu 18.0.4 on a
Virtualbox VM hosted by Windows 10.
I added a port forwarding in
Virtualbox, and I had also to add a rule for
ufw. I tried:
sudo ufw allow on enp0s3 proto tcp from 127.0.0.1 to 10.0.2.2 port 8080
but this rule does not work. I had to change it to:
sudo ufw allow proto tcp from any to any port 8080
It works, but I would restrict the rule to the specific interface and IPs. I tried to add interface,
from IP and
to IP one by one, but they do not work.
Where I'm wronging?