Hi

I am planning on being the authority for my external DNS domain and
will be hosting all my and my customers DNS records myself. I plan on
deploying one external DNS server for the time being. Someone told me
that I would need at least 2 external DNS servers to allow the transfer
of this authority to happen at my ISP. Is this true? I appreciate the
fact that 2 external DNS servers would provide redundancy but I don't
have the physical hardware at the moment. Could I run 2 guest OS
machines on virtual server and make them both DNS servers, anyone have
any experience with virtualising DNS services? Would this be
advisable??

Thanks all

AJ