notice Hostnames should not contain an ‘_’

Jun172010

作者：u2 发布：2010-06-17 18:53 分类：OpenSource 已关闭评论

notice Hostnames should not contain an ‘_’:

such as vm_test01.2hei.net

Please have a look at RFC952 (http://tools.ietf.org/html/rfc952) Hostnames should not contain an ‘_’!

ASSUMPTIONS:

1. A “name” (Net, Host, Gateway, or Domain name) is a text string up

to 24 characters drawn from the alphabet (A-Z), digits (0-9), minus

sign (-), and period (.). Note that periods are only allowed when

they serve to delimit components of “domain style names”. (See

RFC-921, “Domain Name System Implementation Schedule”, for

background). No blank or space characters are permitted as part of a

name. No distinction is made between upper and lower case. The first

character must be an alpha character. The last character must not be

a minus sign or period. A host which serves as a GATEWAY should have

“-GATEWAY” or “-GW” as part of its name. Hosts which do not serve as

Internet gateways should not use “-GATEWAY” and “-GW” as part of

their names. A host which is a TAC should have “-TAC” as the last

part of its host name, if it is a DoD host. Single character names

or nicknames are not allowed.

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