A reverse proxy saves you from having to expose your services directly and acts as a go-between.
Internet <--> Reverse Proxy <--> Service
A reverse proxy saves you from having to expose your services directly and acts as a go-between.
Internet <--> Reverse Proxy <--> Service
Setting a random SSH port and limiting it to 3/min saw failed login attempts fall by 99% and jailed IPs fall to 0.