Host Key Verification
When you connect to Cat5 for the first time with your SSH or X2Go client, the program will ask if you trust your connection to cat5.des.rutgers.edu. For example:
The host key is verified if the hash/fingerprint matches one from this table. Select "yes" if verified. Otherwise inform your instructor or help@envsci.rutgers.edu including a screenshot of the unverified host key.
| key type | hash display format | fingerprint / hash value | can be shown by |
|---|---|---|---|
| ED25519 | SHA256 | rp5kEGF8+RE5RpTm63aM5JmeNjJAkB4fLP7z7hN7RaA | ssh (windows powershell, putty) |
| SHA1 | 07c03551f666fc98a2de5cf1689c56efef88516c | x2go (windows) | |
| ECDSA | SHA256 | OuRTOMpZWL9nzelRTRqZeQZN4eeyOvZrXjUglzvrRN0 | ssh (linux) |
| SHA1 | db3f70bd8eb45053e2e159e90d7a377b5ff97318 | ||
| RSA | SHA256 | QBcRW25rYqSNU4bdKUfoMmAwKXAFJdLrMCyoSutdBUY | |
| SHA1 | a8a0fbcdbdffda58d6559d638d76bea45228e456 |
SHA256: $ ssh-keygen -l -f ssh_host_key.pub SHA1: $ cut -f2 -d" " ssh_host_key.pub | base64 -d | sha1sum -b /var/lib/jupyterhub/run_jh.bash