A simple white-list plugin that uses a permission node instead of an access list.
whitelist.join - Join the server in white-list mode.
whitelist.admin - Access to WLP commands.
/wlon - Enable white-list mode.
/wloff - Disable white-list mode.
/wlmsg <message> - Change the "you are not white-listed" message.
- You would rather manage access by groups.
- You run a public server, but occasionally want a Members/VIP only mode.
- You do not want to maintain a permissions list and a server access list.
Simply give the group/player 'whitelist.join' and access has been granted.