I have a port forward set up to access an internal system from the Internet. Nothing new there. However I thought leaving the port forward disabled by default, then enabling it with knockd would be an easy way to configure this. Are there any problems with doing this?
I'm not good with iptables so I'm trying to take the easy/safe way out. If I enable the port forward with the command I got from "Unsaved changes" which is:
uci set firewall.cfg133837.enabled=**'1'**
will this do the job? Will this disrupt current open connections?