I can confirm that changing the port does drastically reduce login attempts but also that it is not to zero, I had 45 yesterday, for instance but here's the kic

I can confirm that changing the port does drastically reduce login attempts but also that it is not to zero, I had 45 yesterday, for instance but here's the kicker - all from the same IP. Setup and maintenance are virtually zero though, for f2b. I know, I just installed it. A one liner to install on most systems and updates along with everything else when your package manager does the updates.