Open the /etc/bnetd.conf file in your preferred editor (I’ll use vi or vim, a text based editor): [root@mybox]# cd /etc/ [root@mybox]# vi bnetd.conf After opening the file in the editor, search for the client verification and upgrades section and look for the following line: allowed_clients = all Now you must setup your own options for the clients you will allow to connect to your server: Image:NoteIcon.png NoteSince this guide if for Diablo I, StarCraft, and WarCraft II: BNE; I'll configure it to only allow these clients allowed_clients = drtl,star,sexp,w2bn