ID #1368

Why do I receive the following error message during the SSH login: "REMOTE HOST IDENTIFICATION HAS CHANGED" ?

In case you have enabled the RescueSystem and want to log in:


Since the RescueSystem contains an own SSH server the SSH key differs. This in indicated by the abovementioned error message.

This StrictChecking can be temporarily switched off with:

ssh -o StrictHostKeyChecking=no IP address


Further information:

This message just indicates that the servers SSH key has changed. This may have the following reasons:

  • The server has been reinstalled
  • The RescueSystem has been activated
  • You regenerated the keys on the server
  • Due to a compromising of the server by acquaintances and / or strangers
  • "Man-In-The-Middle Attack"

Tags: attack, key, login, man-in-the-middle, ssh

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