Public Linux Environment: SSH Key Mismatch

On July 15, 2020, OIT moved the CNAME for linux.oit.utk.edu. This change may result in an SSH Key Mismatch alert the next time you connect to linux.oit.utk.edu. Instructions for how to proceed for popular clients are below.

Mac or Linux Terminal Window –
Copy/paste the following commands into Terminal:
ssh-keygen -f ~/.ssh/known_hosts -R "160.36.239.242"
ssh-keygen -f ~/.ssh/known_hosts -R "linux.oit.utk.edu"

Windows –
FileZilla Client – Check Update cached key for this host. Click OK.


SSH host key mismatch warning dialog requests trust update for linux.oit.utk.edu.

PuTTY security alert warning that the server host key changed, with Yes, No options.

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