Apache的mod_rewrite任何子域（县）根域，除非存在，因为virtualdocumentroot [英] Apache mod_rewrite ANY subdomain(s) to root domain, unless existent as virtualdocumentroot

问题描述

假设你有一个Apache2的虚拟主机设置，是这样的：

Say you've got an Apache2 virtual host setup, something like this:

/htdocs/parent1.com
/htdocs/sub1.parent1.com
/htdocs/sub2.parent1.com
/htdocs/parent2.net
/htdocs/parentn.org

假设你想与 VirtualDocumentRoot / htdocs中/％0 来做到这一点，这样就可以不与Apache配置修修补补添加和删除虚拟主机。这一点很重要：请请htaccess的文件，每一个虚拟主机自带或进入时间不搞乱或httpd.conf中 - 该主机是否是一个父域或没有。事实上，说你正在使用的AllowOverride无。

Say you'd like to do this with VirtualDocumentRoot /htdocs/%0, so that you can add and remove virtual hosts without tinkering with your Apache configuration. That's important: please please no messing with htaccess files or httpd.conf every time a virtual host comes or goes - whether that host is a parent domain or not. In fact, say you're using AllowOverride None.

无论如何，问题是，如何可能你的301重定向不存在的子域到相应的父域不存在重定向子域？

Anyway, the question is, how might you 301 redirect non-existent sub-domains to their corresponding parent domains without redirecting existent sub-domains?

推荐答案

我可能已经解决了我自己的问题。不过，我想AP preciate任何反馈意见，如果有人发现了一个问题，我在做什么。

I may have solved my own problem. However I would appreciate any feedback if somebody finds a problem with what I'm doing.

单独下列叶子到任意子域的任何请求，只要存在一个相应的文档根;但重定向到不在文件系统中存在的子域的任何请求。

The following leaves alone any request to an arbitrary subdomain, as long as there exists a corresponding document root; but redirects any request to a subdomain which does not exist in the filesystem.

<IfModule rewrite_module>
    RewriteEngine On
    RewriteMap lowercase int:tolower
    RewriteCond "/htdocs/${lowercase:%{HTTP_HOST}}" !-d
    RewriteCond %{HTTP_HOST} "\.([^\.]+\.[^\.]+)$"
    RewriteRule ^/(.*)$ "http://%1/$1" [R=301]
</IfModule>

让我来设置通配符DNS和使用基于域名的虚拟主机，不碰任何配置设置。此外，还有不涉及htaccess的。只要您的文件夹中包含/htdocs/[host.]domain.tld的名字，你是启动和运行。据我所知，这并没有真正使用SSL / TLS工作（presumably用的东西做％{HTTP_HOST} ？），但安全站点同等很少，通过IP地址比主机名比较好解决。

Allows me to setup wildcard DNS and use name-based virtual hosting, without touching any configuration settings. Also, there's no htaccess involved. Just make your folder with any name like "/htdocs/[host.]domain.tld" and you're up and running. As far as I can tell, this doesn't really work with SSL/TLS (presumably something to do with %{HTTP_HOST}?), but secure sites are comparably few and better resolved by IP address than by hostname.

这篇关于Apache的mod_rewrite任何子域（县）根域，除非存在，因为virtualdocumentroot的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！