Okay, now IIRC using /lockdown makes it so nobody can enter the server anymore, right?

Doesn't seem to work for me. People still join the server while I'm trying to have a private game with a few friends, which means I have to kick them, constantly.

Why can they still enter after I've used /lockdown?

.../lockdown makes it so that no one in spectators can enter, and no one currently playing can't spectate..

Oh. Hmm.

Must have read it wrong. But is there any way to make sure outsiders can't join a server you've made?

/pass name
/ set mc 4

Jep - Incorrect (Unless I'm misunderstanding what you are saying). =p /pass name is to type in the pass to play, /passwd name is to set the password. =p

other command
http://forum.toribash.com/showthread.php?t=36515

how do u kick them out?

/kick [name]

Also if you want to ban them then type /status. You will see their ip like this.
After that type /ban [ip] and you have it.

Edit: If you want to kick with a reason then type /kick [name] [reason].
Though the reason wont show up for you, but the guy will see it who you kicked.