新GitLab账户访问及Windows 10 GitBash连接私有仓库失败求助

Hey there, let's walk through the most common fixes for your GitLab SSH connection issue on Windows 10's Git Bash. I’ve dealt with this exact scenario plenty of times, so let’s break it down step by step:

First, let’s rule out the most frequent culprit: a misconfigured SSH key.

• Verify the public key in GitLab: Log into your GitLab account, navigate to Settings > SSH Keys, and confirm the key you uploaded matches exactly what’s in your local ~/.ssh/id_rsa.pub (or your custom key filename). Even a single extra space or newline can break the connection. To view your local public key in Git Bash, run:

  cat ~/.ssh/id_rsa.pub
  

  Copy the entire line (from ssh-rsa to your email address) and cross-check it with the entry in GitLab.
• Use a config file for custom keys: If you created a key with a non-default name (not id_rsa), you need to tell Git to use it. Create or edit the ~/.ssh/config file in Git Bash:

  nano ~/.ssh/config
  

  Add these lines (replace your-custom-key with your actual key filename):

  Host gitlab.com
    Hostname gitlab.com
    User git
    IdentityFile ~/.ssh/your-custom-key
  

  Save and exit (press Ctrl+O, hit Enter, then Ctrl+X in nano).

Run this command in Git Bash to diagnose the connection status:

ssh -T git@gitlab.com

• If you see Welcome to GitLab, @your-username!, your SSH connection is working—your issue is likely with the repository URL.
• If you get Permission denied (publickey) or similar errors, move on to the next steps.

Windows 10 often struggles with the SSH agent not loading your key automatically. Let’s fix that:

• Start the SSH agent and add your key manually:

  eval $(ssh-agent -s)
  ssh-add ~/.ssh/id_rsa
  

  (Replace id_rsa with your custom key name if needed.)
• Make this persistent (so you don’t repeat these steps every time): Edit your ~/.bashrc file:

  nano ~/.bashrc
  

  Add these lines at the bottom:

  eval $(ssh-agent -s) > /dev/null
  ssh-add ~/.ssh/id_rsa > /dev/null 2>&1
  

  Save and exit, then restart Git Bash.

Ensure you’re using the SSH URL for your GitLab project, not the HTTPS one. The SSH URL looks like git@gitlab.com:your-username/your-project.git (you can grab this from your project’s GitLab page). If you already cloned with HTTPS, update the remote URL:

git remote set-url origin git@gitlab.com:your-username/your-project.git

Sometimes Windows Firewall or third-party antivirus blocks SSH connections on port 22. Try temporarily disabling them (just for testing) and see if the connection works. If it does, add an exception for Git Bash or port 22 in your security software.

Older SSH versions can cause compatibility issues with GitLab. Check your version with:

ssh -V

If it’s outdated, update Git for Windows (which includes Git Bash) to the latest release.

After trying these steps, run ssh -T git@gitlab.com again to confirm the connection. If you still get an error, share the exact message you’re seeing, and we can troubleshoot further!

内容的提问来源于stack exchange，提问作者du-it