htaccess force https and redirect www to non-www, but no other subdomains

Question

I know there are many similar threads, but none of them seems to match my exact problem. Here is what I’m trying to do:

(1) http://www.mydomain.com/ -> ht         


        

Answer 1

I found the following answer would match to your requirement:

www to non-www with https but no other subdomains

RewriteEngine on

RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]

RewriteCond %{HTTPS} !on
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

Fulfill all of the three (3) conditions:

(1) http://www.example.com/ -> https://example.com/
(2) http://example.com/     -> https://example.com/
(3) https://www.example.com -> https://example.com/

but no other subdomains than www like so:

(4) http://others.example.com -> https://others.example.com/
(5) https://others.example.com -> https://others.example.com/