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Here’s the full "zero to hero" SSH + Git procedure for Termux

Copy-paste this and you’ll never type password again.

FULL PROCEDURE: SSH Keys for Git in Termux - For Beginners

STEP 1: Install Tools

pkg update && pkg upgrade -y pkg install git openssh -y

STEP 2: Generate SSH Key Pair

ssh-keygen -t ed25519 -C "your_email@gmail.com" What to press:

  1. Enter to save at default location

  2. Enter for no passphrase OR type one if you want extra security

  3. Enter again

Output: Your public key has been saved in /data/data/com.termux/files/home/.ssh/id_ed25519.pub

STEP 3: Copy Your Public Key

cat ~/.ssh/id_ed25519.pub Long press > Copy. It should start with ssh-ed25519 AAAA... your_email@gmail.com

STEP 4: Add Key to GitHub/GitLab

  1. Go to github.com/settings/keys

  2. Click New SSH key

  3. Title: Termux Phone

  4. Key: Paste the 1 line from step 3

  5. Click Add SSH key

STEP 5: Test If SSH Works

ssh -T git@github.com Expected: Hi YourUsername! You've successfully authenticated

Type yes if it asks about known_hosts

STEP 6: Clone Repo Using SSH

THIS IS THE MOST IMPORTANT STEP git clone git@github.com:YourUsername/repo-name.git Now cd repo-name and you can git push / git pull with no password.

SUMMARY CHEAT SHEET OF COMMANDS

pkg install git openssh ssh-keygen -t ed25519 -C "email" cat ~/.ssh/id_ed25519.pub # copy this to github ssh -T git@github.com # test git clone git@github.com:user/repo.git # clone with SSH git remote -v # check if using ssh or https

5 POSSIBLE MISTAKES + HOW TO FIX

Mistake Error You’ll See Fix

1 Cloned with HTTPS instead of SSH Username for 'https://github.com': Change remote: git remote set-url origin git@github.com:User/Repo.git 2 Pasted wrong key to GitHub Key is invalid. Must be OpenSSH public key format You pasted private key. Run cat ~/.ssh/id_ed25519.pub and paste THAT one. Must start with ssh-ed25519 3 Bad permissions Permissions 0644 for id_ed25519 are too open chmod 700 ~/.ssh && chmod 600 ~/.ssh/id_ed25519 4 Permission denied publickey git@github.com: Permission denied (publickey) 1. Key not added to github 2. Testing with wrong email. Run ssh -T git@github.com to check which account 5 Host key verification failed Host key verification failed ssh-keyscan github.com >> ~/.ssh/known_hosts then test again

Pro Tips for Termux

  1. Auto-start ssh-agent: Add this to ~/.bashrc so you don't type passphrase eval $(ssh-agent -s) ssh-add

  2. Multiple GitHub accounts: Create ~/.ssh/config file to switch keys

  3. Storage: termux-setup-storage if you want to clone to /sdcard

Rule to remember:

https:// = asks password

git@github.com: = uses SSH key