@startuml

package dmz {
	component horizon1 as horizon1
}
package hostapp2  {
	horizon2 -down-> [client2app]
	horizon2 -down-> [vserver4]
	[client2app] -up-> horizon2
	[vserver4] -up-> horizon2
}
package hostapp3 {
	horizon3 -down-> [client3app]
	horizon3 -down-> [client4app]
	[client3app] -up-> horizon3
	[client4app] -up-> horizon3
}
package hostapp1 {
	horizon4 -down-> [client1app]
	horizon4 -down-> [vserver8]
	[client1app] -up-> horizon4
	[vserver8] -up-> horizon4
}
blackhole -down-> horizon1
blackhole -down-> horizon2
blackhole -down-> horizon3
blackhole -down-> horizon4

package outside {
	client1 -down-> horizon1
	client2 -down-> horizon1
	client3 -down-> horizon1
	client4 -down-> horizon1
}
@enduml