Specifically, I want to add a rule for
/usr/local/bin/mosh-server that allows incoming UDP traffic on 60001-60999.
I've tried using System Preference's Firewall pane and the "+" button, but I cannot seem to browse to
/usr. I've configured Finder to display hidden and system files using TinkerTool, but that seemingly has no affect on the selection dialogue, which still hides
I've read a bit about using
ipfw, but that's no longer available in Yosemite (v10.10).
pfctl seems to be the replacement. I'll use these if I have to, but I'd much rather add an entry to the system firewall UI, so the change is discoverable.