man-in-the-middle | 易学教程

ssh remote host identification has changed

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问题 I've reinstalled my server and I am getting these messages: [user@hostname ~]$ ssh root@pong @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the RSA key sent by

SSL and man-in-the-middle misunderstanding

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I've read tons of documentation related to this problem but I still can't get all the pieces together, so I'd like to ask a couple of questions. First of all I'll describe briefly the authentication procedure as I understand it, as I may be mistaken in that regard: A client starts a connection, which a server responds to with a combination of public key, some metadata and digital signature of a trusted authority. Then the client takes the decision if she trusts the server, encrypts some random session key with the public key and sends it back. This session key can be decrypted only with

SSL and man-in-the-middle misunderstanding

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问题 I\'ve read tons of documentation related to this problem but I still can\'t get all the pieces together, so I\'d like to ask a couple of questions. First of all I\'ll describe briefly the authentication procedure as I understand it, as I may be mistaken in that regard: A client starts a connection, which a server responds to with a combination of public key, some metadata and digital signature of a trusted authority. Then the client takes the decision if she trusts the server, encrypts some