使用Apache，如何将网站的子文件夹重定向到子域，但将除该子文件夹之外的所有内容都重定向到主域？

Question

I have the same website running on Apache at two different subdomains using vhosts.

www.vhost1.com

www.vhost2.com

Whenever someone accesses a particular subfolder on www.vhost1.com , I want the user to be redirected to that same subfolder on www.vhost2.com .

Example: User accesses www.vhost1.com/my-special-folder User should be redirected to www.vhost2.com/my-special-folder

And whenever someone is on www.vhost2.com and accesses anything except that subfolder, I want the user to be redirected to www.vhost1.com/any-other-url

Example: User accesses www.vhost2.com/any-other-url User should be redirected to www.vhost1.com/any-other-url

Also, if the user accesses www.vhost2.com (with no path), the user should be redirected to www.vhost1.com

Example: User accesses www.vhost2.com User should be redirected to www.vhost1.com

I've tried several different Apache redirect rules and have gotten several of the scenarios to work, but I can't get them all to work at the same time.

Because of the server configuration, I must perform the redirects using a .htaccess file.

What should the Apache rules be?

Answer 1

Place this rule in root .htaccess of both domains:

RewriteEngine On

RewriteCond %{HTTP_HOST} ^(www\.)?vhost1\.com$ [NC]
RewriteRule ^(my-special-folder)(/.*)?$ http://www.vhost2.com/$1$2 [L,NC,NE.R=302]

RewriteCond %{HTTP_HOST} ^(www\.)?vhost2\.com$ [NC]
RewriteRule ^((?!my-special-folder/).*)$ http://www.vhost1.com/$1 [L,NC,NE,R=302]