Alain's example of a split service is most illuminating. I still personally believe there is no point in running your own nameserver to serve the outside world when you can get your ISP to do it for free, which saves you bandwidth and will be more reliable. Tim -- Gllug mailing list - Gllug at gllug.org.uk http://lists.gllug.org.uk/mailman/listinfo/gllug