Which service uses UDP port 53 by default? Launch the VM. Open the AttackBox and execute nmap -sT MACHINE_IP via the terminal. A new service has been installed on this VM since our last scan. Which ...

filtered => nmap cannot determine whether it is open or closed, cause the port is not accessable, it can be due to a firewall preventing nmap from reaching the port,or preventing the response 4.

Advanced and seasoned Nmap users will also benefit by learning about new features, workflows, and tools. Basic knowledge of networking, Linux, and security concepts is required before taking up this ...