Thread:Project:Support desk/elevating my privledges?

I installed mediawiki-1.20.2. After it installed, anybody could add/delete/anything articles. so i created myself an account, but it is just an ordinary account. i want to make this account administrator who can say who is allowed to edit. how do i do this? is there a default admin, or does one have to be manually created? i heard something about adminsettings.php but this was apparently removed a few versions ago. can someone give me the answers i need or point me in the direction i must go?