wrote by Rafael Marangoni, from Consultoria Linux team. By default, on some distros, PostgreSQL will only accept connections from localhost.…

Gmail is undoubtedly one of the most popular web-based email services today. One of the key factors that make Gmail…

Postfix provides several shell programs to manage the mail queue. These are: postsuper postqueue mailq In this tutorial, I will…

Have you ever looked in the apache config files to see where a website's virtual host is defined? The apache2ctl…

Hint: The procedure that is described below is for ISPConfig versions < 3.0.3. For newer ispconfig versions, use the builtin ssl…

Running a nightly backup script on a server system, such as a web hosting server, can result in a heavy…

Some internet access providers have port 25 disabled in their routers to prevent spam. If you run your own email…

This short tutorial describes the steps to optimize the performance of a MySQL database with the mysqltuner script. This tool…

Sometimes you might want to block connects to your server by IP address. E.g. when someone tries to attack your…

This guide shows you how to solve the error message "Connect to MySQL server 127.0.0.1: Too many connections". The error…