Ssh error validating server certificate internet dating minefield translate language

17-Feb-2020 04:13

This makes it more scalable if you are dealing with lots of different systems which are all managed by a few entities.Firefox's new way of handling SSL/TLS certificates is fueling significant debate due in large part to misunderstanding the SSL/TLS certificate process.I'd like to help clear up the confusion by explaining what SSL/TLS certificates are and how they work.Let's face it, SSL/TLS (HTTPS) is vital to user security and privacy on the Internet.There is also a man-in-the-middle (MIM) which is able to intercept the client's incoming and outgoing traffic.Now suppose that the client connects to the SSH server for the very first time and the server's public key info is not in the known_hosts file yet.

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This means that the fingerprint or public key needs to be known by the client up-front, i.e. What you describe is instead blindly trusting any key presented to the user in the hope but not certainty that it is the correct one (TOFU - trust on first use).The server sends its public key to the client, the client checks known_hosts file, does not find the server's public key there and hence the server now needs to prove its identity to the client.Identity is successfully proven (by using server's private key), but suppose that the client does not store the server's public key in the known_hosts after that (it is not mandatory to store it in the known_hosts, as far as I know).Because the MIM's public key is associated with the corresponding private key, MIM successfully proves its identity to the client. I have read that the certificate is put into known_hosts file just as the usual public key.

But what's the point of using a certificate if we may use the same public key on all servers in domain, and simply put that public key into client's known_hosts file?With certificates the client thus does not need to know every server key up-front.