[systemd-devel] Info about JoinsNamespaceOf, PrivateNetwork systemd directives

[george Karakou]

Hi again, i am a bit curious about these two directives. Can somebody 
explain in  a few words how are these implemented? Using linux network 
namespaces? Or simply put somehow services using these 2 directives are 
forbidden to bind to l3, l4 sockets and only allowed to communicate via 
unix domain sockets? Its an interesting feature, i thought i should give 
it a try.