notice Hostnames should not contain an '_'
作者: 2hei 发表于2010年6月17日 18:53 版权声明： 可以转载, 转载时务必以超链形式标明文章原始出处和作者信息及版权声明
http://www.2hei.net/mt/2010/06/notice-hostnames-should-not-contain-an-.html
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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