Here’s how to redirect from one domain to another within Apache using .htacess. This is how to do it permanently (using an HTTP 301 redirect) rather than using a 302, which search engines don’t like.
RewriteEngine On RewriteCond %{HTTP_HOST} ^danielmiessler.com$ [NC] RewriteRule ^(.)$ https://danielmiessler.com/$1 [R=301,L] RewriteCond %{HTTP_HOST} ^dmiessler.com$ [NC] RewriteRule ^(.)$ https://danielmiessler.com/$1 [R=301,L] RewriteCond %{HTTP_HOST} ^danielmiessler.com$ [NC] RewriteRule ^(.*)$ https://danielmiessler.com/$1 [R=301,L]