We don't have a network interface that allows only local communication

[Leo Arias]

From my discussion with one of the zcash developers, he suggested that it might be useful to have a more limited version of the network interface, that allows only to communicate with localhost.

I'm filing the bug so we can discuss if that would be a useful feature to add.

[Cris Dywan (kalikiana)]

Considering no special review is required for network(-bind), what's the advantage of a more restricted interface?

[Mark Shuttleworth (sabdfl)]

If you don't want things off-host to connect to you, but you do want to
connect locally...

[Emily Ratliff (emilyr)]

Definitely agree that this is useful/desirable. It will become possible with fine-grained apparmor network mediation once that work is done. It is on the wishlist.