Barry Margolin writes:
In article <mailman.1559.1296265826.555.bind-us...@lists.isc.org>,
p...@mail.nsbeta.info wrote:
I googled and found this:
It's on the Internet, so it must be true. :)
* A domain name can be up to 63 characters long plus a dot plus the
characters used to identify the top-level domain (i.e "com", "info", "biz",
etc.
* Valid characters in a domain name include letters, numbers and
hyphens "-". The domain name must start and end with a letter or number.
So, for this domain name of
"www.xyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxy.com"
whose size is larger than 64, is not a valid domain name?
And is there a RFC item for a valid domain name?
RFC 1035 section 3.1 says: "To simplify implementations, the total
length of a domain name (i.e., label octets and label length octets) is
restricted to 255 octets or less."
The length of each label within a domain name is limited to 63
characters.
Thanks for the kind info.
Regards.
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