DEV Community: Mastering Linux

I Built an Open-Source DSA Learning Platform With Visual Explanations and Interactive Challenges

Mastering Linux — Fri, 20 Mar 2026 14:37:24 +0000

Learning Data Structures & Algorithms is often harder than it should be. Many resources focus on theory first and practice later, which can make the learning process feel disconnected.

I built an open-source platform to make DSA more visual, interactive, and practical. It includes multiple Python implementations, animated algorithm visualizations, and a challenge workspace with feedback and hints.

GitHub repo : https://github.com/the-shadow-0/DSA-Python

Appreciate ⭐ Star on GitHub / Contribute / Give feedback

PortPulse: Real-Time Linux Network Visibility

Mastering Linux — Fri, 20 Mar 2026 02:06:35 +0000

Ever wanted to see what your Linux server is REALLY doing on the network?

PortPulse visualizes:

Every connection
DNS queries live
Risk scoring of processes & domains
Suspicious activity highlighted
Containers automatically detected

Try it : https://github.com/the-shadow-0/PortPulse

⭐ Star on GitHub / Contribute / Give feedback

5 Quick Linux Networking Debugging Tricks You Can Do With PortPulse

Mastering Linux — Fri, 20 Mar 2026 02:00:46 +0000

Instead of juggling ss, lsof, and netstat, try:

portpulse live --threshold 0.3 → see risky connections
portpulse trace --pid $(pgrep myapp) → follow process network activity
Interactive graph → visualize process ↔ domain connections
/ filter in TUI → filter by process/domain/port
portpulse export -f csv -w all → audit ready logs

Open source → GitHub: PortPulse

💬 Comment your favorite debugging trick!

If PortPulse helped you, consider giving it a ⭐ — it means the world to us!

PortPulse: Debugging Suspicious Linux Connections

Mastering Linux — Fri, 20 Mar 2026 01:57:30 +0000

🔐 Problem: You notice a server “phoning home” but can’t tell which process is responsible.

PortPulse helps:

Trace any PID + its child processes
See every connection with process → port → domain mapping
Risk scoring for suspicious connections
Generate quarantine rules (nftables)
Export logs for compliance or SIEM

Two commands to full visibility:

curl -sSf https://raw.githubusercontent.com/the-shadow-0/PortPulse/main/scripts/install.sh | bash
sudo portpulse live

💡 Bonus: real-time DNS query capture, container awareness, and risk scoring.

Open source → GitHub: PortPulse

I’d love feedback from Linux devs & security engineers:

Would you use this in production?
What features would make it even better?

PortPulse: Real-Time Linux Network Visibility with Rust + eBPF

Mastering Linux — Fri, 20 Mar 2026 01:52:55 +0000

Linux developers and sysadmins — debugging network activity is still fragmented. We juggle:

ss, lsof, netstat
DNS logs
Process trees
Firewall rules

I built PortPulse, a live command center for your Linux network.

Features

Process → Port → Domain mapping
Real-time DNS query tracking
Risk scoring engine (0.0 → 1.0)
Interactive TUI dashboard + animated connection graph
Container-aware (Docker / Kubernetes)
eBPF powered with safe fallback mode

Quickstart

git clone https://github.com/the-shadow-0/PortPulse.git
cd PortPulse && cargo install --path crates/cli
sudo portpulse live