I have too many machines floating around, some virtual, some physical, and they’re getting added and removed semi-frequently as I play around with different tools/try out ideas. One recurring pain point is I have no easy way to manage SSH keys around them, and it’s a pain to deal with adding/removing/cycling keys. I know I can use AuthorizedKeysCommand on sshd_config to make the system fetch a remote key for validation, I know I could theoretically publish my pub key to github or alike, but I’m wondering if there’s something more flexible/powerful where I can manage multiple users (essentially roles) such that each machine can be assigned a role and automatically allow access accordingly?
I’ve seen Keyper before, but the container haven’t been updated for years, and the support discord owner actively kicks everyone from the server, even after asking questions.
Is there any other solution out there that would streamline this process a bit?
You could try SSH certificates using something like https://smallstep.com/sso-ssh/ - essentially you delegate validation of your public key to a IDP, which your servers are configured to trust.
The other approach would be something like ansible or puppet to deploy trusted keys to all servers
Hm… these are both interesting but might be a bit overkill IMO.
I don’t think I’d need a CA and intermediary step if all SSHd needs to do is check if a key is a currently approved key for this particular service or not; and I last looked at chef/puppet many years ago, and it was way too much orchestration work that we no longer need w/ Docker containers and smaller footprint host OSes.
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !selfhosted@lemmy.world
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don’t control.
Rules:
Be civil: we’re here to support and learn from one another. Insults won’t be tolerated. Flame wars are frowned upon.
No spam posting.
Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it’s not obvious why your post topic revolves around selfhosting, please include details to make it clear.
Don’t duplicate the full text of your blog or github here. Just post the link for folks to click.
Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).
You could try SSH certificates using something like https://smallstep.com/sso-ssh/ - essentially you delegate validation of your public key to a IDP, which your servers are configured to trust.
The other approach would be something like ansible or puppet to deploy trusted keys to all servers
Hm… these are both interesting but might be a bit overkill IMO.
I don’t think I’d need a CA and intermediary step if all SSHd needs to do is check if a key is a currently approved key for this particular service or not; and I last looked at chef/puppet many years ago, and it was way too much orchestration work that we no longer need w/ Docker containers and smaller footprint host OSes.