como deshabilitar la sshkey de mi droplet

como hago para deshabilitar la sshkey de mi droplet?

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Site Moderator
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December 19, 2022

Hello @victordiaz

In order to ensure that you’ll still have access to your droplet when PubkeyAuthentication is disabled you’ll need to enable Password level authentication, you can follow these steps.

Edit the sshd config file

  1. sudo nano /etc/ssh/sshd_config
  1. Change PasswordAuthentication from “no” to “yes” and save the file
  2. Change PubkeyAuthentication from yes to no.
  3. Restart the ssh service:
  1. sudo systemctl restart sshd

Happy Holidays!

Site Moderator
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December 18, 2022

Hi @victordiaz,

You can disable your SSH authentication by editing the /etc/ssh/sshd_confg file on your Droplet.

In there you can find the line that says PubkeyAuthentication Yes and change it to PubkeyAuthentication No.

Afterward restart the SSHD service and you are good to go:

service sshd restart

If you however want to disable only a particular SSH key from accessing your Droplet, open the ~/.ssh/authorised_keys. Delete the line containing the key you wish to remove and that’s it.

Hola @victordiaz!!

Si tu Droplet está corriendo un Ubuntu, generalmente con PubkeyAuthentication especificas que la clave pública está permitida para la autenticación. Por defecto la tenemos en yes.

Puedes cambiar esta configuración modificando el archivo de configuración de tu Servidor SSH.

  1. sudo nano /etc/ssh/sshd_config

Luego busca PubKeyAuthentication y lo pones en no.

Finalmente solo necesitas reiniciar el servidor SSH, puedes hacerlo con el siguiente comando:

  1. sudo systemctl restart sshd

Ya me dices si te ha funcionado :)


Sergio Turpín

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