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 […]
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 […]
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 […]
50 Essential Linux Commands that You Should Know
In this blog post, I will list 50 essential Linux commands you need to know to manage Linux systems effectively. These commands will help you perform various tasks efficiently. This post is a follow-up to my previous blog post: 90 frequently used Linux Commands. However, it’s designed to provide you with a carefully categorized list […]
90 Linux Commands frequently used by Linux Sysadmins
There are well over 100 Unix commands shared by the Linux kernel and other Unix-like operating systems. If you are interested in the commands frequently used by Linux sysadmins and power users, you’ve come to the place. Recently, I published a five-part series covering commands often used by Linux sysadmins. Below I’ve listed the 90 […]
How to Secure Your Linux Server from Emerging Cyber Attacks
In today’s world, cybersecurity has become a crucial factor in safeguarding online assets against emerging cyber threats. This is especially true for Linux servers, which are often targeted by cybercriminals due to their popularity and widespread use. In this blog post, we will cover seven essential tips for securing your Linux server against cyber attacks. […]