i was wondering how you would configure (if it is at all possible) bind dns server to point its "A" record to an external mail and web server. for example, the local network domain name is johndoe.com.au, but the registered external domain name is also johndoe.com.au. now the dns server can easily resolve internal hostnames on the local network, but if the mail and web servers are being hosted on external servers outside the local network, how would you point the "A" record in the forward zone file to the mail/web servers? to further complicate things, the mail and web servers have dynamic ip addresses. so this means putting a 'static' ip address of the mail and web server for the "A" record may work today, but not tomorrow. any suggestions?