Software⏱️ 2 min read📅 2026-05-31
How to Fix: github: server certificate verification failed
Git clone error on Debian Jessie due to server certificate verification failure.
Quick Answer: Try adding the GitHub CA bundle to your system's trusted certificates, or use a different Git version that includes the CA bundle by default.
📋 Table of Contents
To resolve the 'server certificate verification failed' error when cloning a GitHub repository, follow these steps:
🛑 Root Causes of the Error
- Insufficient or outdated system CA certificates.
🛠️ Step-by-Step Verified Fixes
Method 1: Update System CA Certificates
- Step 1: Open a terminal as the root user and run
sudo apt-get update && sudo apt-get install ca-certificates.
Method 2: Add GitHub's CA Certificate Manually
- Step 1: Download the GitHub CA certificate from https://github.com/gh/distribution/releases/download/v2.0.27/ca-certificates.
✨ Wrapping Up
By following these steps, you should be able to resolve the 'server certificateverification failed' error and successfully clone your GitHub repository.
❓ Frequently Asked Questions
Insufficient or outdated system CA certificates.
Step 1: Open a terminal as the root user and run sudo apt-get update && sudo apt-get install ca-certificates.
Step 1: Download the GitHub CA certificate from https://github.com/gh/distribution/releases/download/v2.0.27/ca-certificates.
By following these steps, you should be able to resolve the 'server certificate verification failed' error and successfully clone your GitHub repository.
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