As an essential tool for managing servers, SSH (Secure Shell) provides a secure way to remotely access a server’s command line. However, for best SSH security, it’s crucial to limit SSH server access to specific IP addresses to reduce the risk of unauthorized access and brute force attacks. In this blog post, we’ll discuss methods […]
Boost Your Linux Command Line Productivity, Part 1
Welcome to the first part of a series of command line tips to boost your Linux productivity. The command line interface can be a lifesaver for those who work on these systems regularly. In this series, we will explore five ways to help you work faster and more efficiently on Linux servers (or Linux desktops) […]
Fix “Host key verification failed”
“Host key verification failed” is a common error message that can occur when trying to connect to a remote server via Secure Shell (SSH). This error can be frustrating, but it’s actually a security feature that can be easily resolved. In this blog post, we will first look at how to fix this error, then […]
Linux top: Here’s how to customize it
The top command – referred to below as Linux top – is a command on Unix and Unix-like systems such as Linux, which provides a dynamic real-time overview of a running system. It can display system summary information and a list of processes or threads currently managed by the Linux kernel. The types of system […]
Best Linux Distros in 2023: Beginner to Expert
Are you searching for the best Linux distro (distribution) for your desktop computer or laptop to take you into 2023? This article will guide you to what I believe are the best Linux distros for beginner, experienced, and expert users. Whether you are a power user or just getting your feet wet, there are indeed […]
5 ‘other’ Independent Linux Distros You Should Try
As a Linux user or administrator, you are probably familiar with the most popular Linux distribution: Ubuntu. However, have you considered trying out independent Linux distros? In this article, I will explain why independent Linux distros can be an excellent option for curious-minded users. What is an independent Linux distribution? An independent Linux distribution […]
btop – the htop alternative
Have you ever experienced slow application performance on a server and wondered which process was causing the bottleneck? In a production server environment, monitoring system performance and hardware resource usage in real-time is crucial. That’s where system monitoring tools come in handy. And, with the availability of numerous command-line system monitoring tools, you’re spoiled for […]
Which of These 2019 APM Companies’ Predictions Came True?
2023 update: The world of application performance monitoring (APM) has undergone significant changes in recent years, with the rise of observability as a key trend. As companies increasingly rely on complex distributed systems, traditional APM tools are no longer sufficient to provide the visibility and insights needed to ensure optimal application performance. To explore this […]
Linux benchmark scripts and tools
This list of Linux benchmark scripts and tools should prove helpful for quick performance checks of CPU, storage, memory, and network on Linux servers and VPS. Check each script before running from the command line. Most of these scripts will benchmark the CPU, memory, storage, and network. In most cases, the CPU Model, frequency, and […]
ss command in Linux with examples
This article is a follow-up to the previous 90 Linux Commands frequently used by Linux Sysadmins post. Every week, as time allows, I will publish articles on the 90 commands geared toward Linux sysadmins and Linux power users. What is the ss command? The ss command is a powerful utility used to display detailed information about […]