Just a note to myself on how to set up Github access on a random unix box. This is sort of documented, but I'm trying to distill it.
You can no longer use passwords to remote git repos. So, on the Unix box, first do:
$ ssh-keygen -t ed25519 -C "github@saccade.com"
Generating public/private ed25519 key pair.
Enter file in which to save the key (/home/cabox/.ssh/id_ed25519):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/cabox/.ssh/id_ed25519.
Your public key has been saved in /home/cabox/.ssh/id_ed25519.pub.
The key fingerprint is:
SHA256:p4hBFj8TcsDsAdtDxhJ3wJlOVhsCUdElQVwm+EdG8lg github@saccade.com
The key's randomart image is:
+--[ED25519 256]--+
| =@%%%=E |
| .*%Bo%o |
| .*=o*o. |
| oo..o. |
| . .S . |
| o . o |
| . . . |
| |
| |
+----[SHA256]-----+
Now you need to run the agent. This needs to be part of your .bash_login or whatever.
$ eval "$(ssh-agent -s)"
Agent pid 8928
Take the key you made above, and "add" it to the agent.
$ ssh-add ~/.ssh/id_ed25519
Enter passphrase for /home/cabox/.ssh/id_ed25519:
Identity added: /home/cabox/.ssh/id_ed25519 (github@saccade.com)
Finally, do cat ~/.ssh/id_ed25519.pub and copy the output.
Go to https://github.com/settings/keys then click "New SSH key" and paste in the contents.
And remember, you need to do eval "$(ssh-agent -s)" for every session you run git in in the future.
Once you jump through these hoops, you should be able to git push/pull to a cloned repo on Github.