$ bzfs
Note: no acceleration limit has been set.  Players using "mouse
enhancements" may cause problems on this server due to very high
acceleration rates which are not handled well by dead reckoning
algorithms.  To eliminate this warning, set the -a switch in your
configuration.  '-a 50 38' is recommended for standard-speed servers.
Higher speed servers will need higher values for -a in order to not
affect gameplay.  '-a 0 0' may be used to shut this message up without
affecting any players, including those using "mouse enhancements".