my eXPeriences

Intermittent resolution of domain names in Windows Server 2008 DNS

"After you deploy a Windows Server 2003 or Windows Server 2008 R2-based DNS server, DNS queries to some domains may not be resolved successfully.

This issue occurs because of the Extension Mechanisms for DNS (EDNS0) functionality that is supported in Windows Server 2003 DNS.

EDNS0 permits the use of larger User Datagram Protocol (UDP) packet sizes. However, some firewall programs may not permit UDP packets that are larger than 512 bytes. As a result, these DNS packets may be blocked by the firewall."

See http://support.microsoft.com/kb/832223

Don't know what will come here, let's wait and see... But in the first instance it will be a login box (for myself):

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