ufw doesn't block ports I expect it to block

Asked Oct 30 '23 at 13:30

Active Oct 30 '23 at 13:30

Viewed 20 times

I've installed ufw on my VPS and ran the following commands:

# ufw default allow outgoing
# ufw default deny incoming
# ufw allow ssh
# ufw allow 443/tcp comment 'accept HTTPS connections'
# ufw enable
# service ufw restart

The output of ufw status is

Status: active
To                         Action      From

22/tcp                     ALLOW       Anywhere
443/tcp                    ALLOW       Anywhere                   # accept HTTPS connections
22/tcp (v6)                ALLOW       Anywhere (v6)
443/tcp (v6)               ALLOW       Anywhere (v6)              # accept HTTPS connections

When I visit a <ip_address_of_vps>:82 from my PC at home through the browser I still get a web page of a service running in a Docker container, which I want to shield from the internet. Why is port 82 still open?

asked Oct 30 '23 at 13:30

Thomas

@user68186 Docker opens firewall ports on the host machine on it's own and they are not displayed in the firewall output? That seems like a recipe for disaster... – Thomas Oct 30 '23 at 13:39
You may find How To Use Docker with a UFW Firewall useful. – user68186 Oct 30 '23 at 15:35

ufw doesn't block ports I expect it to block

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