Git SSH public key fingerprint does not match with that on local machine

Question

I’m trying to SSH into my github account. I added my public key to my github account and it showed the fingerprint as something like this

SHA256:aYqWu+zL3hIOWTEGvneI90fehVQt9kuGVN7ov8WlTk8

When I SSH to git, it rejects me with

permission denied(publickey)

then I run

SSH -v

and see my client offered public key as

RSA SHA256:aYqWu+zL3hIOWTEGvneI90fehVQt9kuGVN7ov8WlTk8 macbookpro@MacBooks-MacBook-Pro.local

mine has extra username@host.

Can anyone help me to get rid of this? Thanks in advance!

You need to specify your private key with ssh -i /path/to/privatekey -T username@github.com — jdabtieu, Apr 02 '21 at 16:10

score 2 · Accepted Answer · answered Apr 02 '21 at 16:29

2

If you read GitHub's guide on connecting via SSH (https://docs.github.com/en/github/authenticating-to-github/error-permission-denied-publickey), it actually tells you NOT to connect using your username.

All connections, including those for remote URLs, must be made as the "git" user. If you try to connect with your GitHub username, it will fail:

$ ssh -T GITHUB-USERNAME@github.com
> Permission denied (publickey).

Instead, you should use ssh -i /path/to/privatekey -T git@github.com (you can leave you the -i /path/to/privatekey if you're using ssh-agent)

Upon successful authentication, you should get a message like this: Hi username! You've successfully authenticated, but GitHub does not provide shell access.

answered Apr 02 '21 at 16:29

jdabtieu

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Here is my command I used to ssh to git: ````ssh -vT dungtinhhd123@github.com````. Can you be more specific in the comment part in my fingerprint on the local machine. Can I somehow make it disappear? – Dũng Đào Xuân Apr 02 '21 at 16:37
The macbookpro@MacBooks-MacBook-Pro.local? You don't need to make it disappear, that is normal. You should just ssh -vT git@github.com. – jdabtieu Apr 02 '21 at 16:39
Thanks. It was my huge mistake. – Dũng Đào Xuân Apr 02 '21 at 16:46

Git SSH public key fingerprint does not match with that on local machine

1 Answers1