Will denying all ip address except my own create a problem?

To answer your question and for any others that might come along to this thread; Will it be a problem? Denying access from the .htaccess file will block all connections unless permitted, so if you are using plugins that need to execute API calls or similar, you’ll need to whitelist those IPs. So in totality, … Read more

Server database problem

I believe Rarst is right. It sounds like you need to configure the wp-config.php file for the new database. Just go to the cpanel or other control panel of your hosting service, and use the address they use for the host address. If the database is on the same server as the web site, localhost … Read more

Check WordPress size on disk

Why using a plugin for that? You can set a function to calculate the size of the 2 installations. The size of abc.com will include also the size of the other installation, but then you can subtract the smallest from the largest. $path = ABSPATH; $size = foldersize($path); function folderSize ($dir) { $size = 0; … Read more

PHP 7.3 is required for WordPress 5.2 or Recommendation

To be honest, everything is explained in the article you’ve linked: To run WordPress we recommend your host supports: PHP version 7.3 or greater. MySQL version 5.6 or greater OR MariaDB version 10.1 or greater. HTTPS support So yes – that’s only recommendation (as WordPress definitely will work without HTTPS for example). And later in … Read more

Can (slow) Internet speed get you a 500 server error? [closed]

No. 500 error will return when you have server error. PHP error, etc. See response code reference. The HyperText Transfer Protocol (HTTP) 500 Internal Server Error server error response code indicates that the server encountered an unexpected condition that prevented it from fulfilling the request. This error response is a generic “catch-all” response. Sometimes, server … Read more