CTB
500
Sneaker 0 ✔
Authors: Yandex Information Security Team
hardctbjaillinux
Oh, just try to break it
ssh sneaker.yactf.ru -p 60025
Added at 20:37 UTC: Start with man ssh-keygen (might actually help you with another task)
Added at 23:00 UTC: It’s dangerous to go alone, take this: ssh-keygen -s internal/services/ssh/keys/host_key -n root -I sneaker ~/.ssh/id_rsa.pub