主机名和URL语法 [英] Host names and URL syntax
问题描述
我已经对正确的主机名语法进行了一些阅读,并且无法弄清楚什么是非常合适的主机名/ URL语法
您能告诉我以下URL在语法上是否正确吗?
I have done some reading on proper Hostname syntax and can't figure out what is a really proper Hostname/URL syntax Can you please tell me if the following URLs are syntactically correct?
1.2.3.4.5.6.7 / something
10.123.143.13333 / something
1.2 .3.4.5.6.7.com / something
some.host.name.com.org/something
这些只是我无法弄清楚的一些例子。
这些网址是否正确?
Those are just some examples that i couldn't figure out. Are those URLs correct?
推荐答案
这些不是网址,因为它们缺少方案。
These are not URLs, as they are missing a scheme.
假设您的意思是HTTP网址,它们将是:
Assuming that you mean HTTP URLs, they would be:
http://1.2.3.4.5.6.7/something
http://10.123.143.13333/something
http://1.2.3.4.5.6.7.com/something
http://some.host.name.com.org/something
RFC 3986定义主机子组件(HTTP(S)URI的RFC 2616如下)。
RFC 3986 defines the syntax of the host subcomponent for all URIs (and RFC 2616 for HTTP(S) URIs follows that).
主机您的示例URI的名称将是:
The host names of your example URIs would be:
1.2.3.4.5.6.7
10.123.143.13333
1.2.3.4.5.6.7.com
some.host.name.com.org
有效主机名遵循 IP-literal
, IPv定义的语法(在上面链接的部分中) 4address
,或 reg-name
:
Valid host names follow the syntax defined (in the section linked above) by IP-literal
, IPv4address
, or reg-name
:
-
检查
IP-literal
:
作为 IP-literal
要求用方括号括起来( [
... ]
),没有 IP-文字
主机名。
As an IP-literal
requires enclosing square brackets ([
…]
), none are IP-literal
host names.
检查 IPv4地址
:
作为 IPv4地址
必须包含三个。
个字符, 1.2.3.4.5.6.7
, 1.2.3.4.5.6.7.com
,以及部分。 host.name.com.org
不能是 IPv4address
主机名。
As an IPv4address
must contain exactly three .
characters, 1.2.3.4.5.6.7
, 1.2.3.4.5.6.7.com
, and some.host.name.com.org
can’t be IPv4address
host names.
虽然 10.123.143.13333
有三个。
, 13333不是有效的 dec-octet
,所以它不是 IPv4地址
。
While 10.123.143.13333
has three .
, "13333" is not a valid dec-octet
, so it’s not an IPv4address
.
检查 reg-name
:
您的所有示例均有效 reg-name
主机名,如 0-9
, az
,。
是允许的字符。
All of your examples are valid reg-name
host names, as 0-9
, a-z
, and .
are allowed characters.
请注意,不意味着这些是DNS中的有效域名。 RFC 3986并未强制要求使用特定的注册名称查找技术。
Note that this does not mean that these are valid domain names in the DNS. RFC 3986 "does not mandate a particular registered name lookup technology".
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