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Syarif Hidayat

Short, practical notes on Linux, Networking, and Programming. Built for quick scanning, fast reference, and direct use when you need it.

$ sudo apt update $ systemctl status nginx $ ip a | grep inet $ python monitor.py if packet.loss > 0: debug_route()
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This site contains short articles, concrete examples, and concise summaries focused on practical use. Great for quick reference when learning or troubleshooting.
Learning paths

What you'll find here

Three main topics this site focuses on.

Linux
Linux
Shell, services, permissions, package management, and daily terminal workflows.
Networking
Networking
IP, subnetting, DNS, TCP/UDP, and quick ways to read network issues.
Programming
Programming
Practical Python basics, control flow, functions, and small reusable patterns.
Fresh reads

Latest articles

The six most recent posts from Linux, Networking, and Programming.

View all articles
System Updates on Linux: Safe and Simple
System Updates on Linux: Safe and Simple
A compact example article showing a safe way to keep a Linux system up to date.
Subnetting With Confidence
Subnetting With Confidence
A compact article that shows how to approach subnetting in a calm, repeatable way.
Automation with Python: A Simple Example
Automation with Python: A Simple Example
A short article showing how Python can be used for small automation tasks.
Reading Linux Logs Without Getting Lost
Reading Linux Logs Without Getting Lost
A short guide to checking logs with journalctl and understanding common patterns.
Functions for Maintainability
Functions for Maintainability
A short example showing how functions make scripts easier to keep and reuse.
DNS Troubleshooting Notes You Can Reuse
DNS Troubleshooting Notes You Can Reuse
A short example article about checking DNS problems with repeatable steps.