开启认证

		
# vim /etc/mongodb.conf
auth = true
		
		

重载配置文件

		
# /etc/init.d/mongod reload
Stopping mongod:                                           [  OK  ]
Starting mongod:                                           [  OK  ]
		
		

			
use admin;
db.createUser(
   {
     user: "admin",
     pwd: "WkAFdmfVQpP1oAEkz4YVlMCDxkG36TAi",
     roles: [ "dbAdmin", "dbOwner", "userAdmin" ]
   }
);
			
		

早期版本删除用户

			
db.system.users.remove( { user: username } )