Git Credential Manager Diagnose | Generated by AI
The output of git credential-manager diagnose now clearly indicates a networking failure, in addition to the TLS certificate verification warning. Let’s break down the error and how to fix it:
Key Findings:
- Networking Failure:
- The diagnostic test failed with the error:
System.Net.Http.HttpRequestException: nodename nor servname provided, or not known (example.com:443). - This error means that the Git Credential Manager could not resolve the hostname
example.comto an IP address, or it could not connect to port 443 on that host. - The diagnostic log shows that the HEAD request to
https://example.comfailed.
- The diagnostic test failed with the error:
- Proxy Interference (Likely Cause):
- The presence of
HTTP_PROXY: http://127.0.0.1:7890andHTTPS_PROXY: http://127.0.0.1:7890strongly suggests that the proxy is the root cause of the networking failure. - The fact that the diagnostic can access http://httpforever.com, but not https://example.com, indicates the proxy is having issues with https requests.
- The presence of
- TLS Certificate Verification Disabled (Security Risk):
- As before, the TLS certificate verification is disabled, which is a major security concern.
Troubleshooting Steps:
- Proxy Verification:
- Test the Proxy: Open a web browser and try to access
https://example.comdirectly. If you encounter a “cannot connect” or “hostname not found” error, your proxy is likely misconfigured. - Proxy Software Issues:
- Restart your proxy software (Shadowsocks, Clash, etc.).
- Check the proxy software’s logs for error messages.
- Ensure that the proxy is configured to handle HTTPS traffic correctly.
- Ensure the proxy software is running.
- Proxy Configuration:
- Double-check your proxy settings in your operating system’s network preferences and in any Git configuration files.
- Verify that the proxy address (
127.0.0.1) and port (7890) are correct. - Temporarily disable the proxy in your operating system network settings, and retry the git credential manager diagnose.
- Test the Proxy: Open a web browser and try to access
- DNS Resolution:
- Although the error message suggests a hostname resolution problem, the proxy is the most likely culprit. However, it’s still worth checking your DNS settings.
- Try using a public DNS server (e.g., 8.8.8.8, 1.1.1.1).
- TLS Certificate Verification:
- Re-enable Certificate Verification: This is crucial for security. Follow the instructions provided in the
https://aka.ms/gcm/tlsverifylink. - If your proxy software is designed to intercept HTTPS traffic, make sure to install the proxies root certificate into your operating systems trusted root certificate store. This is the secure way to allow the proxy to work.
- Re-enable Certificate Verification: This is crucial for security. Follow the instructions provided in the
- Git Configuration:
- Run
git config --global --listto examine your Git configuration. - Temporarily remove the proxy settings from Git to isolate the issue:
git config --global --unset http.proxy git config --global --unset https.proxy - After removing the proxy settings, re-run the
git credential-manager diagnosecommand.
- Run
- Firewall:
- Temporarily disable any firewalls on your computer, to rule out any firewall interferences.
- Network Connection:
- Test your network connection using other network applications, to ensure that the network itself is stable.
- If using a mobile hotspot, move to a location with better signal strength.
Key Takeaway: The proxy is almost certainly causing the networking failures. Correctly configuring the proxy and re-enabling TLS certificate verification are the most important steps.