1af5593568
Openwrt has a own firewall service called fw3, that supports firewall zones. Docker can bypass the handling of the zone rules in openwrt via custom tables. These are "always" processed before the openwrt firewall. Which is prone to errors! Since not everyone is aware that the firewall of openwrt will not be passed. And this is a security problem because a mapped port is visible on all interfaces and so also on the WAN side. If the firewall handling in docker is switched off, then the port in fw3 must be explicitly released and it cannot happen that the port is accidentally exported to the outside world via the interfaces on the WAN zone. So all rules for the containers should and so must be made in fw3. Signed-off-by: Florian Eckert <fe@dev.tdt.de> |
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