Re: Firewall blocking my new Debian 11 server ports 80 and 443

[IL Ka <kazakevichilya@gmail.com>]

When running those, I'm told neither the arptablrs nor the ebtables are registered (not installed). Should I install them?

No.

So, you now have legacy (classic) iptables, right?

What is the output of ``iptables -L -v -n`` and ``iptables -S`` ?