--On Sunday, May 02, 2021 8:17 PM +0200 Gert Doering <g...@greenie.muc.de>
wrote:
I have no idea what firewalld is, but generally speaking, for the
OS kernel, "tun0" is "just a normal input/output interface". So you
can apply iptables, pf, ... rules on it.
firewalld is a wrapper around iptables or nft that defines zones and
services and maps them onto low-level firewall commands. It's useful to use
the iptables command to inspect the resulting low-level tables to see if
they're doing what you expect. firewalld is designed to allow dynamic
changing of rules through a D-Bus interface to a daemon.
<https://firewalld.org/>
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