Of course. The goal here is to not advertise. Make it hard for the bots to find you. With these steps, they can try your IP, but there’s nothing directly on your IP.
You still need proper security. Authentication is a good start, and it has the extra effect of adding an extra layer to prevent the bots from going further if they get lucky and guess a host name.
frongt@lemmy.zip 7 hours ago
Or run an internal CA