A plea to PSI and other clueless DNS Admins

[Barry Margolin]

In article <38012D2E.C5624F5D at tmca.com.au>,
Stanley Liu  <stanley.liu at tmca.com.au> wrote:
>I understand underscore in domain names is not RFC compliant.  Is there any
>particular reason why it is not allowed?  It is allowed in SRV records etc. as
>you stated.  Just curious.

I believe the designers chose the minimal set that would be useful, and
specifically avoided characters that might have special meaning in
different operating systems.  In the 70's there were still many terminals
that used the ASCII code for underscore as a left-arrow character.

-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
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