Are you sure that you want your server to be visited only by the specified 4 people, and all the rest should be immediately banned when connecting for up to 30 days ???
This idea seems very bad to me. But if you insist, please me the complete correct syntax for the "ZLINE" command on your server.
Or you can independently supplement this script with the necessary lines with commands below under the appropriate conditions for checking.
Well, I just have it as a temporary script while I have spambots connecting to the server, but usually I have it turned off and allow anyone to connect sometime after the spambots have stopped trying to connect.
