The article was looking for multihost too which is why I mentioned it. There are some non kernel sockets implementations, but it is less of an issue as every k

The article was looking for multihost too which is why I mentioned it. There are some non kernel sockets implementations, but it is less of an issue as every kernel implements them, but kdbus is not implemented anywhere yet. It is also not possible to implement correctly in userspace as the security guarantees rely on a kernel, which is inconvenient. It is unlikely eg FreeBSD will ever implement it.