Git SSH public key authentication failed with git on Azure DevOps

Question

I am trying to push a git repo from PowerShell into an Azure DevOps repo, and I keep getting different auth errors when trying to push it.

I am hoping somebody can sh

Answer 1

I believe @Schalton's comment is right: SSH validation is failing, so it prompts for the pass.

Had the same problem. "Solved it" by generating the key as the default value ('id_rsa') instead of using other names (tried other names and none of them worked).

[####@#### .ssh]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/guille/.ssh/id_rsa): id_rsa
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in id_rsa.
Your public key has been saved in id_rsa.pub.

EDIT: As noted by @LHM the value default (no input needed) for the file in which to save the key is showed in parenthesis.

Answer 2

I followed the official permissions denied troubleshooting guide and it turned out, I had to re-generate the key after all. But I think it is best to follow the guide as it provides information on quite a few different scenarios that most of which are not mentioned here.

Answer 3

This worked for me

adding a config file in ~/.ssh/

and adding these lines

Host ssh.dev.azure.com
IdentityFile ~/.ssh/my_ssh_private_key
IdentitiesOnly yes

This link by @wcoder helped

Answer 4

TL;DR: It turns out the path and filename shown in parenthesis (e.g./home/guille/.ssh/id_rsa) is a default value that can be accepted simply by leaving it blank and hitting Enter.

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I, too, had the same problem. I made the same mistake as @eltbus (attempting to name the file something myself), so his answer of sticking to the default of "id_rsa" was helpful to me. I also realized that when I generated the rsa key pair, I saved id_rsa.pub to the wrong folder. (Only entering id_rsa without a leading file path, can save it to a different folder.)

You can avoid both of my above mistakes if you simply hit Enter to accept the default file name and location, instead of typing in a path and/or file name.

Example:

[####@#### .ssh]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/guille/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in id_rsa.
Your public key has been saved in id_rsa.pub.

Answer 5

I realize this question mentions powershell. However, with the title and tags people on other OS's may end up here, and there is a common problem with Azure Devops access from mac and linux.

To fix this for mac and linux, add IdentitiesOnly yes to ~/.ssh/config

This is a common problem for Azure Devops. Unfortunately I'm not certain why this fixes it.

Answer 6

I saw my repo ssh URL which was different from my DevOps URL in my case what worked was adding the config file in my ~/.ssh folder with the following information:

Host vs-ssh.visualstudio.com <-- hostname found in my repo SSH URL
    IdentityFile ~/.ssh/id_rsa_vsonline <-- your key name
    IdentitiesOnly yes

then tested it with

ssh -v vs-ssh.visualstudio.com

in the trace, I got something like

Authenticated to vs-ssh.visualstudio.com ([IP]:22).