Resolving the Permission Denied Error When Connecting SSH to GitLab

Описание: Have you encountered a `Permission Denied` error while attempting to add an SSH key to GitLab? Discover the common mistake and how to properly configure your SSH settings for seamless integration with GitLab.
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This video is based on the question https://stackoverflow.com/q/64092914/ asked by the user 'guckmalmensch' ( https://stackoverflow.com/u/12935622/ ) and on the answer https://stackoverflow.com/a/64093803/ provided by the user 'guckmalmensch' ( https://stackoverflow.com/u/12935622/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting SSH Connection Issues with GitLab

If you've tried to connect to GitLab using SSH and encountered a Permission Denied error, you’re not alone. This puzzle can be frustrating, especially when everything seems correctly set up. In this post, we'll clarify the common mistakes and provide a structured approach to ensure your SSH key works seamlessly with GitLab.

The Problem

You’ve successfully generated an SSH key using the following command:

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Then, you copied it to the intended service, Pavlovia, and set up your SSH configuration. However, when you try to authenticate with GitLab using the command:

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You receive an error message:

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This error typically indicates that GitLab is unable to verify your identity using the SSH key you've configured. Let's explore why this might be happening and how to fix it.

Analyzing Your SSH Configuration

Your .ssh/config file is crucial for establishing secure connections. Here’s what it looks like in your case:

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At first glance, this configuration seems correct. However, the key is in the details. The error often stems from a small oversight in the host definition.

Finding the Solution

In your case, the issue was in the host configuration for GitLab. The correct Host should be git.pavlovia.org instead of gitlab.com. This common mistake can lead to the authentication failing because the SSH connection is being attempted on an incorrect address.

Steps to Fix the Configuration

Edit Your SSH Config File: Update your SSH configuration to reflect the correct host information.

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Test Your SSH Connection: After making changes, verify that your configuration is working by using the following command:

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Check SSH Agent: Ensure that your SSH agent is running and monitoring the key. You can add your key via:

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Re-try your connection: Now, reattempt to connect to ensure that the Permission Denied error is resolved.

Conclusion

Navigating SSH configurations can sometimes feel overwhelming, especially when minor details lead to significant roadblocks. By ensuring that you have the correct host specified in your SSH configuration, you can avoid these common pitfalls. Remember, little tweaks can lead to big changes!

If you're still having issues, double-check your SSH keys, and ensure they have been correctly added to your GitLab account. Happy coding!