mv command in Linux, with examples
This mv command guide is a follow-up of my previous 90 Linux Commands frequently used by Linux Sysadmins article. Every week, or as time allows, I will publish articles on around 90 commands geared toward Linux…
Attain Peak Redis Server Performance with Proactive Monitoring
Remote Dictionary Server (Redis) is an open-source NoSQL database that comprises of a fast, in-memory data structure to store data in key-value pairs. It serves as a fast and highly efficient data store…
Linux: ncdu and mc to manage large directories
Creating, modifying, and deleting files are everyday tasks performed in any operating system, even more so by Sysadmins, Developers, and Programmers. For the most part, these tasks are fast enough when managing a…
How to Enable Unattended Upgrades on Ubuntu/Debian
Linux server security is of critical importance to sysadmins. One central part of keeping Linux servers secure is by installing security updates promptly. Too often, there are compromised servers on the internet due…
Enable Automatic Updates – Fedora/Red Hat + Bonus Tip
Linux server security is crucial to Linux server administration. Part of keeping Linux servers secure is installing security updates shortly after they become available. Too often, compromised servers are a result of pending…
Best Linux distro and Desktop Environment Combinations
Are you searching for the best Linux distro (distribution) and DE (Desktop Environment) combination? What better way to increase your familiarity with Linux servers than running Linux on your laptop or workstation? As…
Ransomware: Implementing a “No Concessions” Ransomware Policy
Ransomware has emerged as a particularly relentless and disruptive force against organizations worldwide. The debate over whether to adopt a “no concessions” policy—refusing to pay ransoms to cybercriminals—mirrors long-standing discussions in counter-terrorism and…
Pinging.net – a new quick way to monitor your internet connection
What do you do when you question whether your internet connection is working, or not? I built Pinging.net to be a fast and convenient way to monitor your internet connection. How does pinging.net work?…
Enhance the performance of MongoDB databases with proactive MongoDB monitoring
MongoDB is an open-source NoSQL database management system that stores data in JSON-like documents. It’s designed to handle large volumes of data with a document-oriented architecture and can operate without a predefined schema,…
Trackpoint Replacement
Update: 11 years later, here are the replacements I currently use. It’s been 3 years that I’ve been using the Lenovo x301. The ONLY issue I’ve had, is the TrackPoint caps. They don’t…
G-Core Labs CDN Review
G-Core Labs has its cloud and edge solutions ecosystem where Content Delivery Network (CDN) initially have had an important role. Unlike other providers, the company offers all the benefits of deep integration between…
PHP Performance: Additional CPU cores vs Faster CPU cores
Some time ago, I received an email from a client experiencing slow performance issues with a LEMP (Linux, Nginx, MySQL, and PHP web server). During a full audit, I found that the server’s…
PHP 8: After 4 years, only 30% of PHP websites use it. But why?
Two years ago, one of our online community members discussed some of the reasons behind the slow adoption of PHP 8. One member stated that it’s due to PHP compatibility issues across new…
dnf error: cannot find the libbrotlidec.so.1 library (cPanel/WHM CentOS 7 to AlmaLinux 8)
Upgrading from CentOS 7 to AlmaLinux 8 is a significant step towards ensuring that your systems remain secure, supported, and up-to-date with the latest features and security patches. AlmaLinux 8, as a community-driven…
5 database metrics every DBA should monitor for peak performance
Database monitoring is indispensable for maintaining the health, performance, and reliability of your database system. It provides administrators and IT teams with real-time insights into the system’s operations, enabling them to proactively identify…
The Two Generals Problem
Table of Contents Alice and Bob Imagine there’s a city in a valley. On either side of the valley, there’s an army commanded by a general. On the left hill stands General Alice…
50 Essential Linux Commands that You Should Know
To build experience with Linux commands, there are a few things you can do. First, try to use the command line interface as much as possible. This will give you practice with the…
Improving OpenVPN performance and throughput
You may have been following my Linux home lab build. One of the most important decisions when building your home lab is selecting the proper router/firewall for your network. After many hours of…