Installing K3s + K3d and Deploying a K3d Kubernetes Cluster in Docker (with a fully persistent volumes)
If you want “real Kubernetes behavior” but don’t want to burn a whole fleet of VMs, K3d is one of[…]
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Category: Linux
All about linux labs
Logging Basics : Log Levels, logrotate, Retention, and rsyslog Forwarding (TCP/TLS)
Linux logging is one of those “boring until it saves your weekend” topics. In a SOC lab, a production environment,[…]
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Working with Command History Like a Pro: history, !, Ctrl+R, and Aliases (Practical Examples)
If you spend any time in a Linux shell, your command history becomes your second brain. Good history habits make[…]
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Bash vs Zsh vs Other Shells: What to Use on Servers (Practical Examples)
On a server, your shell isn’t just “the thing that runs commands.” It affects: Reliability (will scripts behave the same[…]
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Monitoring vs Observability vs SIEM vs SOC (Explained for Linux Admins)
If you’ve ever stared at a red dashboard tile at 02:00 thinking “Okay… but why?”, you’ve already met the difference[…]
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Basic Hardware Info on Linux (Practical Guide): lscpu, lsblk, lspci, lsusb, dmesg
When you’re troubleshooting performance issues, verifying a server build, or just documenting a machine for your inventory, you want fast[…]
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System Updates: Configuring Timezone, Locale, Hostname and /etc/hosts (with Practical Examples)
When you install a fresh Linux server, everyone rushes to install packages, set up web servers and Docker… and then[…]
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System Updates on Linux Servers: Safe Updates with apt, dnf, and zypper
Keeping your Linux servers updated is one of the simplest and most effective ways to stay secure and stable. But[…]
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Manual Pages and Help in Linux: man, –help, info and Efficient Searching (Practical Examples)
One of the biggest differences between a beginner and a confident Linux administrator is how fast they can find the[…]
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How to Use auditd and Integrate It with Wazuh (With Practical Examples)
If you care about security, compliance, or just want to know who did what on your Linux server, you’ll eventually[…]
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