Checking certificates can give you valuable insight. Like who issued the cert or what SUBDOMAINS the cert covers

Hint:
The only algorithms the server understands are

* rsa-sha2-512
* rsa-sha2-256
* ssh-rsa

Make sure your ssh client supports and uses one of these.

Happy hunting!
- Leitz : https://x.com/mleitz1

Next Hint: https://egg.mleitz1.com/api/onboarding/hint/9/web