Wordpress wp-admin redirects me to a different domain

The above answer didn't work for me. See:

• https://wordpress.stackexchange.com/a/179788/107311 by James
• https://codex.wordpress.org/Moving_WordPress

change "siteurl" and "home" in the database table "wp_options" (through phpMyAdmin or similar)

Go to your database, and find the table called wp-option, then change the wordpress address and site address to mysite.net.

You can also add the following lines of code to the wp-config.php-file

define('WP_SITEURL','http://your-site-url.com');
define('WP_HOME','http://your-site-url.com');