How to Delete SSH Keys in Linux
SSH keys are generated in Linux when a user remotely logs in to the computer, and are used to authenticate a user and allow them access to a Linux computer. If you don't want a particular user to have SSH access to a computer, you can delete their SSH keys from their home directory.
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Instructions
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Log in to the Linux computer.
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Type "su" and press "Enter."
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Type in the root password when prompted and press "Enter."
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Type "rm -rf /home/username/.ssh" into the terminal, with "username" being the actual username of the person whose SSH keys you want to remove.
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Press "Enter" and the SSH keys are deleted.
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