Bind 9.1 As SOA with Windows 2003 DNS Server

Skywalker lcorda at
Sun Oct 8 00:59:29 UTC 2006

I think I found the answer.  Our basic problem is that we are using the
same domain name ( for internal and external use.  I read
an article about split-brain DNS from Microsoft.  We would have an
external DNS server that is authoritative for the zone and an internal
DNS server that is authoritative for the the same zone name.  This
method would not expose our internal computers to the outside.  The
internal DNS server could perform forward lookups to the external DNS
server.  The internal computer could therefore perform dynamic DNS
updates to the internal DNS server.  Does this make sense?

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