An implementation of socks.ServerAuthentication which provides
simple authentication based on the host from which the connection
is made and the name of the user on the remote machine, as reported
by identd daemon on the remote machine.
Implementations of this interface are expected to use some or all
of the information provided plus any information they can extract
from other sources to decide wether given user should be allowed
access to SOCKS server, or whatever you use it for.
Grants permission only to those users, who connect from one of the
hosts registered with add(InetRange,Hashtable) and whose names, as
reported by identd daemon, are listed for the host the connection