mines/rin/miner/GIT_CREDENTIALS_QUICKSTART_LINUX.md

Git Credentials Quick Start Guide (Linux Mint)

🚀 Quick Setup (Choose One Method)

Method 1: SSH Keys (Most Secure - Recommended)

# Run the setup script
cd /mnt/shared/DEV/repos/d-popov.com/mines/rin/miner
./setup-git-credentials-linux.sh

# Choose option 1 (SSH Keys)

What it does:

• Generates SSH key pair automatically
• Shows public key to add to git.d-popov.com
• Changes remote URL to SSH for passwordless access
• Tests SSH connection

Method 2: GNOME Keyring (Encrypted Storage)

# Run the setup script
cd /mnt/shared/DEV/repos/d-popov.com/mines/rin/miner
./setup-git-credentials-linux.sh

# Choose option 4 (GNOME Keyring)

What it does:

• Installs git-credential-libsecret
• Configures Git to use GNOME Keyring
• Stores credentials encrypted in system keyring
• Works with Seahorse (Passwords and Keys)

Method 3: Personal Access Token

# Run the setup script
cd /mnt/shared/DEV/repos/d-popov.com/mines/rin/miner
./setup-git-credentials-linux.sh

# Choose option 5 (Personal Access Token)

What it does:

• Configures Git to store credentials
• Next push/pull will prompt for token
• Remembers credentials for future use

🧪 Test Your Setup

# Test script
cd /mnt/shared/DEV/repos/d-popov.com/mines/rin/miner
./test-git-credentials-linux.sh

This will:

• ✅ Check your credential configuration
• ✅ Test Git operations
• ✅ Verify SSH keys (if using SSH)
• ✅ Provide troubleshooting tips

🔧 Manual Commands (If Needed)

SSH Key Setup (Manual)

# Generate SSH key
ssh-keygen -t ed25519 -C "your-email@example.com"

# Start SSH agent (if not running)
eval "$(ssh-agent -s)"
ssh-add ~/.ssh/id_ed25519

# Copy public key to clipboard
xclip -sel clip < ~/.ssh/id_ed25519.pub

# Test SSH connection
ssh -T git@git.d-popov.com

Change Remote URL

# Check current remote
git remote -v

# Change to SSH (recommended)
git remote set-url origin git@git.d-popov.com:popov/mines.git

# Change back to HTTPS
git remote set-url origin https://git.d-popov.com/popov/mines.git

GNOME Keyring Setup (Manual)

# Install dependencies
sudo apt update
sudo apt install -y libsecret-1-0 libsecret-1-dev

# Build and install git-credential-libsecret
cd /tmp
git clone https://github.com/git-ecosystem/git-credential-libsecret.git
cd git-credential-libsecret
sudo make install

# Configure Git
git config --global credential.helper libsecret

🚨 Troubleshooting

VS Code Still Asks for Credentials

1. Check credential helper:

   git config --global credential.helper
   

2. Clear VS Code's Git cache:

   • VS Code: Ctrl+Shift+P → "Git: Clear Credentials"

3. Reset Git configuration:

   git config --global --unset credential.helper
   # Then run setup script again
   

SSH Connection Issues

# Test SSH connection
ssh -T git@git.d-popov.com

# Debug SSH
ssh -v git@git.d-popov.com

# Check SSH agent
ssh-add -l

Permission Denied

• ✅ Check if SSH key is added to git.d-popov.com
• ✅ Verify SSH key has correct permissions (600)
• ✅ Make sure you're using the correct username

Authentication Failed

• ✅ Verify Personal Access Token hasn't expired
• ✅ Check if token has correct permissions
• ✅ Try regenerating the token

📋 For git.d-popov.com Server

Generate Personal Access Token:

1. Log into git.d-popov.com web interface
2. Go to User Settings → Access Tokens
3. Create new token with read/write permissions
4. Copy token (you won't see it again!)

Add SSH Key:

1. Log into git.d-popov.com web interface
2. Go to User Settings → SSH Keys
3. Paste your public key (~/.ssh/id_ed25519.pub)
4. Save and test: ssh -T git@git.d-popov.com

🔐 Security Best Practices

• ✅ SSH Keys: Most secure, no passwords stored
• ✅ GNOME Keyring: Encrypted storage, system integration
• ⚠️ Store Credentials: Plain text (avoid on shared computers)
• ✅ Personal Access Tokens: Time-limited, can be revoked
• ✅ Regular Rotation: Change tokens/keys periodically

Linux Mint Specific Features

Seahorse (Passwords and Keys)

# Install Seahorse
sudo apt install -y seahorse

# Launch from menu or command:
seahorse

# View/manage Git credentials stored in GNOME Keyring

SSH Agent Integration

# Check if SSH agent is running
ps aux | grep ssh-agent

# Start SSH agent automatically (add to ~/.bashrc)
if [ -z "$SSH_AGENT_PID" ]; then
    eval "$(ssh-agent -s)"
fi

# Add SSH key to agent
ssh-add ~/.ssh/id_ed25519

Git Configuration for Linux

# View all Git config
git config --list --show-origin

# Set up credential cache (15 minutes)
git config --global credential.helper cache

# Custom cache timeout (1 hour)
git config --global credential.helper 'cache --timeout=3600'

📞 Need Help?

1. Run the test script: ./test-git-credentials-linux.sh
2. Check VS Code Git output panel for errors
3. Verify your Git server configuration
4. Try different authentication methods

Quick Fix: Run ./setup-git-credentials-linux.sh and choose option 1 (SSH Keys) - it usually solves most issues! 🎯