.htaccess - Third-level domains with .htaccess

Question

I would like to do a thing like that used in basecamp.com: the name of your company becomes a third-level domain, http://mycompany.basecamp.com for example. I understand that it is (most likely) made ​​on the basis of .htaccess file and mod_rewrite, but I do not quite understand how exactly. Please advise me how it is implemented? Thanks in advance!

Answer 1

1. /host/users/myaccount/htdocs/mycompany在 htdocs:或等效项中创建子目录
2. 备份 .htaccess ，总是更好
3. 将以下行添加到.htaccess文件中：

RewriteCond %{HTTP_HOST} ^mycompany\.basecamp\.com
RewriteCond %{REQUEST_URI} !^/mycompany/?
RewriteRule ^(.*)$ /mycompany/$1 [L]

这将捕获对第三级域的每次调用并使用子文件夹中的文件进行应答