top 10 Easy Solutions

your website running on same server with  ( NGINX and mysql php fpm 7) you dont need to re upload complete website same server you have all access of old website files and database now you need to change a only configuration in WordPress defined site url and home url you can change from database or wp-config.php  file wp-config file change domain URL      define( 'WP_HOME', 'http://example.com' ); define( 'WP_SITEURL', 'http://example.com' ); now you need to set host name  -> /etc/hosts ip  url need to change in nginx sites-available configuration file  change server name  then reload a nginx server sudo systemctl reload nginx