Hey Hokapefr,

Sorry for the inconvenience. I wrote this article in 2019 and used OWASP's BWAPP for this write-up. After your response, I went to my lab to recreate the same environment, and apparently it didn't work for me. Then I switched to Metasploitable 2 and tried it there, and it worked fine. I suggest you to use Metasploitable for this tutorial. During the scan, you might not see the port 3632 at first. Try to use port specific scan, and you'll see that port 3632 is open.

Ex: nmap -sS -sV -p 3632 10.10.10.6

Anyway, I have added a new content based on Metasploitable environment in order to avoid any confusion for future readers.

Thank you so much for checking it out and let me know about it. I appreciate it.

Cheers.