You could use this
The good thing about this is you don't need to give out the rcon pass.You create login and passwords for people.The screenshots don't look like what I have.On mine there are buttons for kick,tempban,ban.I have mine running on my webhost.You may need the query port open though.Also I use 1.8 and have not tried 1.9.
http://callofduty.filefront.com/file/PHP_CoD2CoD4_RCON;86398