Related

Join the DigitalOcean Community Community

Join 1M+ other developers and:

  • Get help and share knowledge in Q&A
  • Subscribe to topics of interest
  • Get courses & tools that help you grow as a developer or small business owner
 Join Now
Is it possible to configure an sftp user for uploading and editing but NOT downloading files? Question Question
Set umask for another user Question Question

Question

How to remove ssh keys for the droplet.

Posted July 5, 2017 16.1k views
SecurityUbuntu 16.04

I have created a ssh key for my droplet at digital oceans. After few days I have deleted the key from security page and still I am able to ssh using putty with that key. Is it necessary to delete the key from authorized_keys file. If so, then what is the use of adding/deleting ssh keys to droplet on their above mentioned security page?

Add a comment
nipun59
By:
nipun59

Related

Join the DigitalOcean Community Community

Join 1M+ other developers and:

  • Get help and share knowledge in Q&A
  • Subscribe to topics of interest
  • Get courses & tools that help you grow as a developer or small business owner
 Join Now
Is it possible to configure an sftp user for uploading and editing but NOT downloading files? Question Question
Set umask for another user Question Question

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

×
Submit an Answer
3 answers
jamieson July 6, 2017

Hansen is right. Installing keys on Droplets is a one-way deal: they’re installed at initial boot only and never updated or removed. That keys repo is used for new droplets only.

To remove a key from a droplet:

sudo nano $HOME/.ssh/authorized_keys

Find and remove that key, and then save. You do not need to restart the SSH process.

If you are trying to manage keys across a team, you need tools like Userify (disclaimer: I work there), SSH.com’s Universal Key Manager, or use a tool like Chef or Puppet to actually remove those keys from authorized_keys.

Reply Report
hansen July 5, 2017

Hi @nipun59

Yes, you need to remove it from the authorized_keys - that’s the one controlling who can get into the server.

The point of the security page, is to have a storage of keys, that you can easily create new droplets with a key from the storage.

Reply Report
michaelb6bd3c2b70125a42ce7 May 4, 2018

So just to be clear, I have zero droplets so there are no authorized_keys to be removed. My question was, how do I remove the keys from the create droplet screen?

Reply Report

Related

Looking for something else?

Ask a new question Search for more help