host *
    stricthostkeychecking no
host admin
        identityfile ~/.ssh/admin

host u? admin
	user %USER
	hostname localhost
host u1
	identityfile ~/.ssh/u1
host u2
	identityfile ~/.ssh/u2
host u3
	identityfile ~/.ssh/u3
host u4
	identityfile ~/.ssh/u4
host u5
	identityfile ~/.ssh/u5
host u6
	identityfile ~/.ssh/u6