heres and example of my server


allow-nether=true
level-name=Chakra
enable-query=false
allow-flight=true
server-port=25565 --------- This is the typical minecraft port
level-type=FLAT
enable-rcon=false
level-seed=
server-ip= ----------- I left mine blank, I think if you want others to join your server then you can input an ip here. ull have to research that.
max-build-height=256
spawn-npcs=false
white-list=true
spawn-animals=false
snooper-enabled=true
hardcore=false
texture-pack=
online-mode=true
pvp=false
difficulty=0 ------------ Difficulty can be anything it doesnt matter if all monsters are turned off
gamemode=1
max-players=20
spawn-monsters=false
view-distance=10
generate-structures=false
spawn-protection=16
motd=Chakra is flowing

This post was edited by Josiah on May 23 2013 01:02pm

was this what you were talking about?

online-mode

true Server checks connecting players against minecraft's account database. Only set this to false if your server is not connected to the Internet. Hackers with fake accounts can connect if this is set to false! If minecraft.net is down or inaccessible, no players will be able to connect if this is set to true. Setting this variable to off purposely is called "cracking" a server, and servers that are presently with online mode off are called "cracked" servers.

true - Enabled. The server will assume it has an Internet connection and check every connecting player.
false - Disabled. The server will not attempt to check connecting players.


Edit:

I think your free versions might be able to join if this is set to false. I am not certain though.

This post was edited by Josiah on May 23 2013 01:11pm