Hackthebox - Devel
From nmap, there are ftp and http service.
Hackthebox - Mirai
From nmap, there are ssh, dns, and http service.
Hackthebox - Sense
From nmap, there are http and https service.
Hackthebox - Shocker
From nmap, there are http and ssh service.
Hackthebox - Optimum
From nmap, only port 80 is opened.