Network Interface Names on Linux

Network interface is almost a like a "network card". Except it's not necessarily a physical card.

This short article tells you what names (like wlp4s and enp1s0) mean.

These are the new names used by Debian and other systemd distros.

Wireshark - Getting Started

Wireshark is the leading network sniffer and analyzer.

In this article, you'll learn to install Wireshark on Debian Linux.

You'll capture traffic and view statistics. Finally, you'll use display filters to extract DNS name queries and HTTP web surfing.

Tunkeutumistestaus

Learn to hack computers to protect your own. In the course, you will break into target computers.

Update: We have four great visitors coming, check agenda.

Excellent feedback, reached 5.0 out of 5.

Palvelinten Hallinta

Control 10, 100, 1000 many computers.

Or control 2071 computers, like Jussi did on a earlier course. Or handle 7 different operating systems and OS versions with a single master, like Matias.

Best instance got 5.0 / 5 feedback - all respondents gave the best grade 5.

Verkkoon tunkeutuminen ja tiedustelu

New course in 2025 spring! Network Attacks and Reconnaissance. In Finnish. Teaching together with Lari Iso-Anttila.

Now offering three offensive courses

• Penetration testing (Reached 5.0/5 feedback; autumn 2024; enroll 2024-05-15)
• Application Hacking and Vulnerabilities (First instance autumn 2024; enroll 2024-05-15)
• Network Attacks and Reconnaissance (This course, first instance 2025)

We're thinking in the lines of WLAN, RFID, maybe even some SDR sprinkled in.

Study Cyber in Haaga Helia

Hacker studies? You can learn a lot of cyber security in Haaga-Helia.

Just offensive studies add up to 25 credits of courses + 15 credits for thesis. And there is more...

In Finnish, you can take "Tietoturva-asiantuntija" (Cyber security specialist) path. For international students, Haaga-Helia has growing number of cyber courses.

Cyber Security - 2025 late autumn

Learn cyber security. Understand high level management view.

Tie it to grass roots level with some simple hands-on exercises.