@caglar said:
It was easy, I did it. I run it on the server and it worked. But it doesn’t work on local kali. What is the problem of address space on the local? Is there any setting for os kernel?
It does work locally except for the actual flag will not be printed by menu item 5 . Since the flag can not be found on your Kali or attacking VM, but on the remote container instance, it will not print anything locally. The work required to print the flag inside the programme can be triggered choosing menu item 5.
If you don’t understand what you did remotely, you must have got a spoiler from someone.