Author: Willie

Willie has over 15 years of experience in Linux system administration and DevOps. After managing infrastructure for startups and enterprises alike, he founded Command Linux to share the practical knowledge he wished he had when starting out. He oversees content strategy and contributes guides on server management, automation, and security.

Hardening a Linux server for production comes down to a short list of changes made in the first hour after setup: disabling password-based SSH login, configuring a firewall to close unused ports, installing fail2ban to block repeated login attempts, and turning on automatic security updates. Disable Password Authentication for SSH The single highest-impact change is switching SSH access from password authentication to key-based authentication. Passwords, even strong ones, are vulnerable to brute-force attempts, while SSH keys are effectively impossible to guess through automated scanning. # Generate a key pair on your local machine # Copy the public key to the…

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Ask any claims adjuster what slows them down and you’ll hear the same list: paper trails, mismatched data between systems, fraud checks that take days, and core software older than some of the people using it. Payout delays frustrate policyholders and cost insurers trust. That’s why more carriers are rethinking claims from the ground up — not with another patch, but with platforms built to connect the whole process. Automated Triage and Smarter Routing The first bottleneck in most claims departments isn’t the decision itself — it’s getting the case to someone who can actually make that decision. A fender-bender…

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Ad blockers are one of those browser add-ons you barely think about until they stop doing their job. A page that was clean last week suddenly has a sticky video covering the corner. YouTube starts serving more interruptions. A news site loads three tracking scripts before the headline appears. Then you open the Chrome Web Store and find a pile of extensions making almost identical promises. Linux doesn’t make the decision much harder. Ubuntu, Fedora, Mint, Arch, and the rest all run Chrome extensions in broadly the same way. The bigger issue in 2026 is Chrome itself. Manifest V3 changed…

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A player in Alberta presses “deposit” and sees the balance change seconds later. The request may cross authentication, geolocation, a payment processor and several transaction logs. An online casino is not a single website. It is a financial application spread across Linux hosts, containers, databases and outside platforms. The harder task is keeping every system in agreement about the player’s identity, location and money when a connection fails. Why Casino Transactions Are Difficult to Reconcile? A casino session may involve deposits, wagers, game rounds, winnings, withdrawals and changes to the player’s wallet balance. The request commonly enters through a reverse…

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The emergence of artificial intelligence has generally divided opinion. While acknowledging its amazing potential, there is also a worry for some that human-led content will fade away, and we’ll be stuck in a world where everything essentially feels fake and lacks personality. Conversely, some people struggle to see where AI can’t benefit the planet and use it as a 24/7 assistant. Alongside all of this, professionals are attempting to work with it on a daily basis, including in the games industry.  Whether they’re game developers or game artists working on some of the biggest gaming releases, numerous AI tools are…

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Most people don’t think about data recovery until something disappears. Maybe you deleted a folder and then emptied the Recycle Bin. Maybe a USB drive suddenly started asking to be formatted. Or you formatted the wrong partition and realized what happened a few seconds too late. It happens. Deleted data can sometimes still be recovered, especially if the drive hasn’t been used much since the files disappeared. That’s why it’s usually a bad idea to keep downloading files, installing programs, or copying things onto the affected drive. If you need recovery software for Windows, these are seven options worth trying.…

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