Connect in SSH without username and password

Hi guys,.

Anyone know if it is possible on the switches of the small company to open a session using PuTTY without username and password.

For example, to hold a PKI SSH on the machine which has PuTTY.
Simply connecting this specific machine connects you automatically in the CLI of the switch.

If possible, how would I go to do this?

REMKO

You can of course.

First, you must enable SSH access to the switch by going in "security: TCP / UDP Services" in the GUI, choose SSH access and apply the configuration changes.

Then, you enable public key authentication by going on "user security authentication: SSH on the server: SSH", allowing the two "authentication by public key SSH user" and "Auto-connect" and apply the change.

Finally, in the same section, you add a user existing in the Table of the SSH user authentication. Paste your public key RSA and apply.

Save your changes of configuration and you are ready to go.

This approach works well on a SG300, but different small business switches can go about things a little differently.

Tags: Cisco Support

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