If you are on a server, and want to ban someone you do /ban <player name>
If you want to ban them, and anyone else that logs in from that location then you do /banip <playername> The commands may be different on some servers, and you have to have either admin or operator access to the server to do those commands. Hope this helped!
Global ban on Minecraft is when you get banned from Minecraft Multiplayer.
Sadly, no
you can't
Uberminecraft.com no doubt.
Port forward it.
43.34.43.12:25565
Scottland
skga.me
just go to mutiplayer and put ip sever you want to join
On a server do /ban [Player name here]
You can't... you have to de-op him before you ban him.
Usually, the ban is permanent until someone unbans you.