Command to bind privileged ports

[guillaumerose]

On macOS, user can bind privileged ports but on all interfaces. It is not possible to restrict the binding to only 127.0.0.1 for instance.

On Linux, crc daemon needs to have a special capabilites for that.

Using the admin-helper to bind the port and pass it to the daemon can be a solution.

[cfergeau]

Thinking more about this, we would not want admin-helper to be usable by arbitrary processes to bind to < 1024 ports. But I don't know how we can restrict its use to crc :-/ So maybe not really possible to do it this way