Apache HTTPS to HTTPS Redirection - mod-rewrite

Question

We have a client server hosting our web application using Apache 2.2 & Tomcat 6 in RHEL. I have setup apache re-write rule for http to https redirection and it works fine. We have two DNS names that are used to access the same application. Test1.com and Test2.com. I want all the users trying to access http:// test1.com or https:// test1.com to https:// test2.com. As mentioned, http:// test1.com to https:// test2.com redirection is working fine. I am not able to implement https://test1.com to https://test2.com.
I have tried Virtual Hosts, ServerAlias, NameVirtualHost, but nothing works. Any suggestions if we can handles this via re-write would help. Any other pointers that might lead to the resolution of this issue will be appreciated.
Thanks

Answer 1

I solved this issue with redirect, but I had to setup virtual host for https redirect with all necessary ssl settings.
<VirtualHost *:80>
ServerName test1.com
Redirect "/" "https://test2.com/"
</VirtualHost>
<VirtualHost *:443>
ServerName test1.com
Redirect "/" "https://test2.com/"
SSLEngine on
# SSLProxyEngine On
SSLCertificateFile /path/site.crt
SSLCertificateKeyFile /path/site.key
SSLCertificateChainFile /path/DigiCertCA.crt
SSLProtocol ALL -SSLv2 -SSLv3
SSLHonorCipherOrder on
SSLCipherSuite EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH
</VirtualHost>
<VirtualHost *:443>
ServerName test2.com
...
SSLEngine on
# SSLProxyEngine On
SSLCertificateFile /path/site.crt
SSLCertificateKeyFile /path/site.key
SSLCertificateChainFile /path/DigiCertCA.crt
SSLProtocol ALL -SSLv2 -SSLv3
SSLHonorCipherOrder on
SSLCipherSuite EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH
</VirtualHost>

Answer 2

Try the following:
RewriteEngine On
RewriteCond %{HTTP_HOST} test1.com$
RewriteRule ^(.*)$ https://test2.com$1 [L,NC,R=301]
If you have a <VirualHost> for both :80 and :443, this redirect should go in both configurations.

Answer 3

I had site1 with https (certificate) and site2 with http (without certificate), both on the same IP (virtual hosts.
Then I noteiced that site2 was getting incorrectly indexed by Google for https, using site1's content.
Whilst for RewriteCond listening
for port 80, the redirect needs to
sit in the .htaccess for site2,
for port 443, the redirect needs to
sit in the .htaccess for site1.
But then the discrimination no longer goes by port but by HTTP_HOST (the DNS name).
For me, site1 = shop.smartgart.com, site2 = one0.com.
I put this into site1's .htaccess:
RewriteEngine On
RewriteCond %{HTTP_HOST} !^shop.smartgart.com$
RewriteRule ^(.*)$ https://shop.smartgart.com/$1 [R=301,L]
That is: If the HTTP_HOST being handled is not site1, then redirect to site1, using the supplied suffix ($1).
Works for me!

Answer 4

I solved this issue with MULTIPLE redirects, not the same as #A Kunin 's answer.
Because I use different certificates for both site, and it will report certificate error if I just redirect from httpS://test1.com to httpS://test2.com.
My solution is: httpS://test1.com --> http://test1.com --> httpS://test2.com
<VirtualHost *:80>
ServerName test1.com
Redirect "/" "https://test2.com/"
</VirtualHost>
<VirtualHost *:443>
ServerName test1.com
#### The Tricky ####
Redirect "/" "http://test2.com/"
SSLEngine on
# SSLProxyEngine On
SSLCertificateFile /path/site1.crt
SSLCertificateKeyFile /path/site1.key
SSLCertificateChainFile /path/DigiCertCA1.crt
SSLProtocol ALL -SSLv2 -SSLv3
SSLHonorCipherOrder on
SSLCipherSuite EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH
</VirtualHost>
<VirtualHost *:443>
ServerName test2.com
...
SSLEngine on
# SSLProxyEngine On
SSLCertificateFile /path/site2.crt
SSLCertificateKeyFile /path/site2.key
SSLCertificateChainFile /path/DigiCertCA2.crt
SSLProtocol ALL -SSLv2 -SSLv3
SSLHonorCipherOrder on
SSLCipherSuite EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH
</VirtualHost>