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Can SSH be spoofed?
No, this is not possible. Depending on the key exchange mechanism in use, there are (slightly) different mechanisms for proving the identity of the server.
What causes SSH fingerprint to change?
The server has multiple SSH servers installed, and you’re connecting to the same machine running a different SSH server (e.g., due to improperly configured startup behavior), which has its own separate keys.
What is a server fingerprint in SSH?
A host key fingerprint is also known as RSA key, host key, and key fingerprint. Every SSH server is configured to use a host key to verify that the client is connecting to the correct host. The clients are expected to manually verify the host key while connecting to the server using any SSH client.
What is Port spoofing?
Port spoofing is a network spoof that relies on usage of non standard network TCP/UDP ports. There are lots of variations and details, but the basic idea is an attacker attempts to bypass perimeter safeguards by directing network traffic with malicious intent using non-standard (read: unexpected) ports.
Is the SSH / SFTP fingerprint the same as the public key?
Your server authentication process will be time consuming. A better way of carrying out server authentication when using SSH/SFTP is by inspecting the public key fingerprint. A fingerprint in this context is basically a hash function of a public key. Simply put, it’s a shorter equivalent of the public key.
Can a MITM spoof a SSH fingerprint?
Yes, if a MitM can intercept your first connection to an SSH server AND feed you a wrong fingerprint you are pwned.
How can I Save my SSH key fingerprint?
The moment you connect, you’ll encounter something like this: Copy that fingerprint and save it where you can easily access it. If your server runs on Windows or another GUI-based operating system, then you can install an SFTP client like AnyClient and connect to the server (again, locally).
Why is it important to Know Your SSH host key?
In other words, it helps a client determine whether it’s really connecting to the server it intended to connect to. If the server fails the SSH host key authentication process, then it’s possible that the server’s host key was simply changed by the admin. That’s not a big problem.
https://www.youtube.com/watch?v=794sn9nllSM