# http://forum --> https://forum
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^forum\. [NC]
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
# http:// --> https://
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} !^forum\. [NC]
RewriteRule .* https://forum.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
# https:// --> https://forum
RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} !^forum\. [NC]
RewriteRule .* https://forum.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
htaccess ayarlarım hatalı olabilir mi? o neden olabilir mi soruna?