Some people (including myself) have been having problems when ssh'ing into their iDevice. In my case, my Apple TV 2G.

I had update to iOS 4.2 for the Apple TV 2G earlier today, then decided I preferred having the use of Plex, NitoTV and other such applications so I downgraded back to iOS 4.1.

When ssh'ing back into the Apple TV I had the following error:

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@ REMOTE HOST IDENTIFICATION HAS CHANGED! @

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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 the RSA host key has just been changed.

The fingerprint for the RSA key sent by the remote host is

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Please contact your system administrator.

Add correct host key in /Users/user/.ssh/known_hosts to get rid of this message.

Offending key in /Users/user/.ssh/known_hosts:6

RSA host key for 10.1.1.50 has changed and you have requested strict checking.

Host key verification failed.

To fix this problem, we just need to alter the Known_hosts file. The easiest way to do this is to type the following into Terminal (or other such ssh'ing program) simple replace 'username' with the username on your computer:

open /Users/username/.ssh/known_hosts

This will open a text editor with the Known_hosts file open. Simple select all (or just the host entry for your device) delete it, and save the file.

Any problems, be sure to let us know and we'll get you sorted again.