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dereks
dereks

Reputation: 564

How to set SSH on GitHub using Ed25519 algorithm in Colab?

Similar questions look outdated compared to official guide. I do the following in Colab:

# Generating a new SSH key
!ssh-keygen -t ed25519 -C "[email protected]"

Your identification has been saved in /root/.ssh/id_ed25519.
Your public key has been saved in /root/.ssh/id_ed25519.pub.

Then I copy-paste the content of id_ed25519.pub ssh-ed25519 ..... [email protected] to new SSH Key window.

And test connection fails:

!ssh -T [email protected]

Host key verification failed.

What am I doing wrong?

Upvotes: 1

Views: 983

Answers (1)

bk2204
bk2204

Reputation: 76764

The error message you're seeing, “Host key verification failed,” indicates that the remote server is unknown. Normally, in such a case, OpenSSH will prompt you with the fingerprint of the remote server and ask you to verify it. The official guide contains a link to the GitHub SSH key fingerprints.

However, in this case, you're running the command from another program without a TTY, so OpenSSH can't prompt you. You'll need to attempt to invoke the command from a terminal, then verify the fingerprint and then things should work.

Upvotes: 1

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