http://pwnable.kr/# http://pwnable.kr/ there are flag files corresponding to each challenges (similar to CTF), you need to read it and submit to pwnable.kr to get the corresponding point. in order to read the flag file, you need some skills regarding programming, reverse-engineering, bu pwnable.kr 첫 번째 문제 fd *.* 엄마를 찾는 한 아이가 말하네요 "파일 디스크립터가 뭐야?? 뀨>
