| author | Oleksandr Gavenko <gavenkoa@gmail.com> |
| Wed, 05 Aug 2015 23:55:34 +0300 | |
| changeset 1729 | 22ffd80639c0 |
| parent 899 | 7b4265c8d324 |
| permissions | -rw-r--r-- |
|
899
7b4265c8d324
Set fill-column as directory local var.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
735
diff
changeset
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-*- mode: outline; coding: utf-8; -*- |
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* What characters may be used for host name? |
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As say RFC 952 hostname is a text string up to 24 characters drawn from the alphabet |
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(A-Z), digits (0-9), minus sign (-), and period (.). |
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As say RFC 1035: |
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<domain> ::= <subdomain> | " " |
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<subdomain> ::= <label> | <subdomain> "." <label> |
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<label> ::= <letter> [ [ <ldh-str> ] <let-dig> ] |
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<ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str> |
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<let-dig-hyp> ::= <let-dig> | "-" |
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<let-dig> ::= <letter> | <digit> |
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<letter> ::= any one of the 52 alphabetic characters A through Z in |
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upper case and a through z in lower case |
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<digit> ::= any one of the ten digits 0 through 9 |