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How to Fix 502 Bad Gateway Error in NGINX

Sometimes website users get 502: Bad Gateway Error in NGINX. Here are the steps to fix this problem.

Apache cache helps improve website speed and performance. Here is how to configure Apache cache in Ubuntu.

It is important for developers and administrators to learn MySQL. Here are the best 5 online resources to learn MySQL.

Often database developers need to select top n rows per group in a table. Here are different ways to get top rows per group in MySQL.

Sometimes you may need to rewrite URL parameters in NGINX server. Here are the steps to do this.

PostgreSQL administrators need to often create new users. Here is how to create user in PostgreSQL database.

Often database administrators need to allow remote users to access database. Here is how to enable remote access in MySQL.

Often database administrators need to create read only users for MySQL. Here are the steps to give read only user access in MySQL.

Often system administrators need to redirect URLs & web pages to another domain. Here is how to redirect location to another domain in NGINX.

Sometimes you may need to increase file upload size in Apache Server. Here is how to do this.