On 3/16/2010 11:08 AM, Jason Bertoch wrote:
I found it well written and could certainly find a use for it with new
employees and support technicians. It may not be relevant to your target
audience, but I thought a useful addition to the DNS Transport section might be
to mention firewall restriction of DNS packets to 512 bytes as another common
mistake.
I also wonder if it might be worth while mentioning that DNS can source from a
port other than 53.
For those configured intricate firewall policies, this could trip them up on
the outbound side as well.
Ooo, and maybe mention (although possibly not a '101' subject) the TXT record
used for things like SPF? (although maybe no longer relevant)
This is nice. I'm going to link it on my website.
-Ben
--
Ben Kamen - O.D.T., S.P.
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