An administrator defined a local user account with a secret password on router R1 for use with SSH. Which three additional steps are required to configure R1 to accept only encrypted SSH connections?
Question
An administrator defined a local user account with a secret password on router R1 for use with SSH. Which three additional steps are required to configure R1 to accept only encrypted SSH connections?
Solution
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Generate RSA Keys: The first step is to generate RSA keys on your router which will be used for encryption and decryption of the SSH packets. This can be done using the command 'crypto key generate rsa' in the global configuration mode.
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Enable SSH Transport: The next step is to enable SSH transport for virtual terminal lines (VTY). This can be done using the command 'transport input ssh' in the line configuration mode. This command tells the router to only accept SSH connections.
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Set the SSH Version: By default, your router may support both SSH version 1 and 2. However, it is recommended to use version 2 as it is more secure. You can set the SSH version using the command 'ip ssh version 2' in the global configuration mode.
Remember to save your configurations using the 'write memory' or 'copy running-config startup-config' command to ensure that the configurations are not lost when the router is restarted.
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