Author name: Sean

NGINX is a highly reliable, high-performance web server, reverse proxy server, and load balancer. Since its inception, NGINX has earned a reputable place in the IT industry due to its versatility, speed, and efficiency. However, setting up NGINX isn’t always a walk in the park, especially for the uninitiated. Even experienced system administrators can fall […]

Greetings, systems administrators! If you’re responsible for managing one or more servers, chances are you’re already familiar with the utility and necessity of SSH keys. Secure Shell (SSH) keys offer a secure way of logging into a server with SSH, providing a safer and more efficient alternative to password-based logins. However, as powerful as they

As a system administrator, one of your many responsibilities is managing and maintaining the email servers of your organization. If you’re using Exim, one of the most popular message transfer agents (MTA) on Unix-based systems, understanding the Exim mail log is crucial. In this blog post, we’re going to dive into five important things you

If you’re a Linux or Unix user, you’ve likely encountered the “rsync” command in your coding journey. Rsync, an abbreviation for ‘remote sync’, is a free software utility for Unix-like systems that provide fast, versatile, remote (and local) file copying. Essentially, it’s a tool that syncs files and directories between two locations within a host

The dig command, short for Domain Information Groper, is a flexible and powerful command-line tool used for querying DNS servers. It provides information about various DNS records, including A (IPv4), AAAA (IPv6), MX (Mail Exchange), NS (Name Server) records, and more. Here are four ways a Linux system administrator might use the dig command: Remember