public static ZoneTransferIn
newAXFR(Name zone, String host, int port, TSIG key)
throws UnknownHostException
{
	if (port == 0)
		port = SimpleResolver.DEFAULT_PORT;
	return newAXFR(zone, new InetSocketAddress(host, port), key);
}
Instantiates a ZoneTransferIn object to do an AXFR (full zone transfer).
@param zone The zone to transfer.
@param host The host from which to transfer the zone.
@param port The port to connect to on the server, or 0 for the default.
@param key The TSIG key used to authenticate the transfer, or null.
@return The ZoneTransferIn object.
@throws UnknownHostException The host does not exist.
src/main/java/core/org/xbill/DNS/ZoneTransferIn.java