2023s
This is the evaluated lab exercise for Linux Server course. Student had an empty virtual Linux installation and free use of public Internet.
Course Linux palvelimet is in Finnish, so the rest of this page is in Finnish.
Web browsing sessions can be saved as HAR files for debugging. "Save as HAR" is supported by Firefox, Chrome, OWASP ZAP and Burp.
This tool extracts HTML web pages from HAR file.
Many file formats support encryption with a password. John the Ripper can crack these passwords with dictionary attack.
This article teaches you to obtain Jumbo version and compile it. Finally, you'll test your environment by cracking a ZIP archive password. A sample password protected ZIP file is provided with this article.

Learn to manage your own Linux server – in 8 weeks.
100% remote. Three hour video conference every Tuesday and Friday. Beginners welcome. Excellent feedback 4.8 out of 5. In Finnish.

Data security course, in English as you asked.
Understand adversarial view on security. Recognize key concepts of security. Be able to safely practice hands-on with security tools.