#config

Properties tab → search a setting → flip the switch or type a value → SAVE → restart. Here is what the most useful settings do, and the defaults on a fresh server.

Run a proxy (Velocity recommended) on its own server, add your backend servers to velocity.toml, and turn on modern forwarding so backends can safely use online-mode=false.

Players who can't break or place blocks near spawn are usually inside spawn protection. Set spawn-protection to 0, or check claim plugins, permissions and game mode.

A few safe changes to view distance, simulation distance, entity and item settings make a big difference. Change one thing at a time and measure with spark.