Re: [jboss-dev] Hostname problem when starting JB AS TRUNK
Jason T. Greene wrote:
In reality there is nothing wrong with [underscores],
they just aren't allowed in DNS.
That was correct in ARPANET times, but it's been untrue for
quite a while, even before internationalized domain names
became widely supported. DNS itself (as in the RFCs) does
not make such a restriction. Certain overly conservative
client programs may.
http://www.faqs.org/rfcs/rfc2181.html section 11:
"Implementations of the DNS protocols must not place any
restrictions on the labels that can be used."
or
http://www.faqs.org/rfcs/rfc3696.html section 2:
"Any characters, or combination of bits (as octets), are
permitted in DNS names."
Jonathan.
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