$ nc khanh1916 31337 # one filtered port, one real flag
(UNKNOWN) [khanh1916] 31337 (?) open
There is a real flag hidden in this profile.
No guessing and no brute force. A browser is enough.
hint 1: read this page the way a browser doesn't
hint 2: what you find sends you somewhere else; the scan has the last piece
check your answer locally, so nobody has to see it:
$ echo -n 'flag{...}' | sha256sum
b83a1eafdd4db16c84ffdec5f733d35f4a43a31df18a928cf728bceab8ebcd80 -
solved it? write to southkhanh@gmail.com, subject: 31337
