A growing e-commerce company needed to manage logs from its Docker containers on Amazon Linux 2. With thousands of orders processed daily, server logs grew quickly and became hard to...
The Linux operating system (OS) works on servers, desktop computers, laptops, and various mobile devices, and provides a system basis for Android, Tizen, and Sailfish OS. Major computer hardware vendors,...
I’ve been using this trick for a few months now. Every morning I need my AWS MFA code. Open phone, find authenticator app, squint at 6 digits, type them in...
If you work with GitLab, you probably type your username and password every time you push code. It gets old fast. SSH keys fix that: once set up, GitLab authenticates...
Here is the thing about deleting files on Linux: the commands are simple, but the consequences are permanent. The rm, unlink, and rmdir commands delete files and directories, and they...
Merging PDFs on Linux is one of those things that sounds harder than it is. Whether you’re combining signed contracts, stacking reports, or just cleaning up a folder full of...
I’ve broken a production server twice by creating users wrong. Once by assigning the wrong UID. Once by not understanding how the primary group assignment works. Neither time was obvious...
If you work with Linux, you’ll run into tar.gz files constantly. Open-source projects love them. They’re like the zip format of the Unix world—everywhere you look.
Managing file permissions is one of those Linux skills you need early. Get it wrong and you’re either locked out of your own files or, worse, you’ve created a security...
Renaming folders on Linux is straightforward once you know a few commands. I’ll cover the tools I use daily: mv for simple renames and rename for batch operations.
In this post, I’ll show you how to zip folders in Linux with practical examples. I’ve been using zip for years to organize files, save disk space, and move data...
Copying files and directories is one of those things I do every day on Linux. Whether I’m backing up config files, moving photos around, or deploying code to servers, knowing...
I’ve been managing Linux servers for over a decade, and DNS issues still catch me off guard sometimes. You type in a domain, hit Enter, and… nothing. Or worse, you’re...
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