For the binding option, an interface can be specified like this:
Binding {
Port = 80
Interface = 192.168.1.1
}
but only with its IP address.
It would be useful to also allow an interface name (eg eth0,...), as it is more convenient if you don't want to hardcode an IP address in the config file.
Example :
Binding {
Port = 80
Interface = eth0
}