Linux Server Hardening Checklist for Ubuntu and RHEL
A hands-on Linux server hardening checklist for Ubuntu 24.04 and RHEL 10: SSH, sudo, firewall, sysctl, auditd, AIDE and CIS scans, with real output.
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112 tutorials, newest first · page 5 of 12
journalctl: The Commands You’ll Actually Use
The journalctl commands worth knowing: filter by unit, time and priority, follow logs live, and why your logs vanish after a reboot.
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Linux find Command: 30 Practical Examples
Thirty find command examples for Linux: search by name, size, time and permissions, run actions with exec, and delete files without wrecking things.
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50 Essential Linux Commands Every Beginner Should Know
Fifty Linux commands grouped by task, with real terminal output, the ten to learn first, and the ones that can ruin your day.
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Installing and Managing Java 25 on Linux
How to install Java 25 on Ubuntu, Debian, RHEL and Fedora, pick the right JDK build, set JAVA_HOME properly, and switch between installed versions.
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Linux ACLs: setfacl, getfacl and the Mask Explained
How to use setfacl and getfacl for Linux ACLs, including the mask, default ACLs on directories, and why chmod can silently revoke a grant.
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Mastering Git: Complete Guide from Init to Push with Branch Management
Git from install to first push, with branching, remotes and the mistakes worth rehearsing. Every command shown with the real terminal output it produces.
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The Ultimate Guide to Installing and Using Terraform
Install Terraform on Ubuntu and RHEL, then master init, plan, apply, destroy and state commands with real terminal output plus three troubleshooting fixes.
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How to Remove an AWS ALB Setup for a Laravel App on EC2 (Step by Step)
You spun up an Application Load Balancer for your Laravel app. Now you want it gone. Maybe the bill surprised you, maybe you’re trying to stay inside the free tier, maybe you just want to start over without a bunch…
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How to Set Up an AWS Application Load Balancer for a Laravel App on EC2
Your Laravel app is running on EC2. Nginx is up, the site loads, everything’s fine. Then the other questions start creeping in. What happens when the instance reboots and the public IP changes? What if traffic spikes and you need…
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