Redirect to HTTPS with .htaccess for several domains

Question

I have several websites that share an htaccess file (Drupal multisite), and would like to redirect several of them to the https version of the sites. I saw this solution for one domain:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^specific\.com [NC]
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI}

I'd like to modify it to work for several domains, but am not sure whether I can do the following, or whether the lines need to be re-written:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^specific\.com [NC]
RewriteCond %{HTTP_HOST} ^another\.com [NC]
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI}

I didn't want to try it, in case I blow up several live sites.

Answer 1

There are 2 options:

1. Just redirect all the domains:

    RewriteCond %{HTTPS} off RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE] 

2. Or target specific subdomains using [OR] clause:

    RewriteCond %{HTTPS} off RewriteCond %{HTTP_HOST} ^specific\\.com [NC,OR] RewriteCond %{HTTP_HOST} ^another\\.com [NC] RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]