ufw not work

[Vastzhang]

Hi，my pi4b iso is 2021-01-03-OPENFANS-Debian-Buster-Aarch64-ext4-v2021-2.0-U6-Release-plus++.img.xz,I install ufw for it and ufw deny 81,but i can still access my application on port 81,what wrongs?

[aiminick]

we used iptables, not ufw.

[Vastzhang]

we used iptables, not ufw.

Ok,iptables work.There are plans to support UFW in the future？

[Vastzhang]

I find the problem.Ufw is not work with docker container by default,you can slove it as follow