ssh key changed

CNBarnes · 10-25-2010, 01:49 PM

Back in June, we updated our "general use linux machine" that my users logon to. We used the same name & IP as the old machine - but naturally, the ssh key changed.

One of my more IT literate users is getting the following error.

Code:

Warning: the RSA host key for 'host' differs from the key for the IP address 'IP'
Offending key for IP in /Users/user/.ssh/known_hosts:787
Matching host key in /Users/user/.ssh/known_hosts:798
Are you sure you want to continue connecting (yes/no)? yes
Warning: untrusted X11 forwarding setup failed: xauth key data not generated
Warning: No xauth data; using fake authentication data for X11 forwarding.
Linux Io 2.6.26-2-686 #1 SMP Wed May 12 21:56:10 UTC 2010 i686

Am I correct in telling my user that this error will go away if he either removes the offending line from
/Users/user/.ssh/known_hosts or deletes the file file altogether?

He is trying to tell me I need to "fix my server"....

TB0ne · 10-25-2010, 01:59 PM

Quote:

Originally Posted by CNBarnes

Back in June, we updated our "general use linux machine" that my users logon to. We used the same name & IP as the old machine - but naturally, the ssh key changed.

One of my more IT literate users is getting the following error.

Am I correct in telling my user that this error will go away if he either removes the offending line from
/Users/user/.ssh/known_hosts or deletes the file file altogether?

He is trying to tell me I need to "fix my server"....

Yes, you are correct, and it sounds like you need to get the LART, and go visit him.

If he's unclear on the concept, you can direct him to Google, and tell him to look up how keys and other such items are generated, and why that message comes up.