CODEWITHSUNDEEP
gitazure-devops
bramvdk
bramvdk

Reputation: 1557

Git: Public key authentication failed

When I want to use git on with azure devops (vsts) I can't use git clone, pull, push etc. I get the error:

remote: remote: Your Git command did not succeed. remote: Details: remote: Public key authentication failed. remote: fatal: Could not read from remote repository.

But when I use the command below it works, so the problem is not the key. ssh-agent sh -c 'ssh-add ~/.ssh/key; git push repo'

When I do a git clone, push, pull etc I thought it goes through your .ssh dir to automatically check which key to use. Anybody any idea on how to fix this?

Upvotes: 16

Views: 24030

Answers (5)

yozniak
yozniak

Reputation: 695

My case was more tricky. VisualStudio.com banned my old ssh key and didn't bother to somehow notify me. Experimentally I figured out that I just need to add a new key and use it instead.

ssh-keygen -f ~/.ssh/new_key

In ~/.ssh/config:

Host vs-ssh.visualstudio.com
  IdentityFile ~/.ssh/new_key

That worked. Then fun thing was that they don't let you remove the old banned key from SSH Keys page.

Update: With OpenSSH 8.9p1 that makes ssh-rsa keys by default, you may need to enable ssh-rsa in ssh_config or ~/.ssh/config.

    PubkeyAcceptedAlgorithms +ssh-rsa
    HostkeyAlgorithms +ssh-rsa

See https://stackoverflow.com/a/72102410/4653540

Upvotes: 5

Guildenstern70
Guildenstern70

Reputation: 1859

I solved the problem by adding the identity to the SSH provider with

ssh-add [path to your private key]

so, for instance:

ssh-add /home/myuser/.ssh/id_rsa

Upvotes: 5

ivan
ivan

Reputation: 11

Along a similar line as Yuriy Pozniak's solution, I simply removed and re-added my public key, and that resolved my issue.

Modifying the ~/.ssh/config file to explicitly point the azure devops host to my private key did not work for me.

Upvotes: 1

Lolorol
Lolorol

Reputation: 633

I added in the ~/.ssh/config:

Host ssh.dev.azure.com
  IdentityFile ~/.ssh/[you private key file]

Upvotes: 15

bramvdk
bramvdk

Reputation: 1557

Fixed it by creating ~/.ssh/config and added:

Host xxx.visualstudio.com
  IdentityFile ~/.ssh/key

Make sure to do chmod 0400 ~/.ssh/config

Upvotes: 27

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