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[https://github.com/mdsnins/ctf-writeups/blob/master/2019/Insomnihack%202019/l33t-hoster/l33t-hoster.md](https://github.com/mdsnins/ctf-writeups/blob/master/2019/Insomnihack%202019/l33t-hoster/l33t-hoster.md)