[RedFusion]

What functions should i use to create an ip-ban command/dialog?

[Roko_foko]

I don't know if there is already function that bans players ip inside samp include, but you can make your self one.
GetPlayerIp to get the Ip-adress. Store the ip in some folder - same as you save player stats and OnPlayerConnect check if the player ip-adress is inside of the file.