From 53be38a968d407b8795cf26db1d733be9758c7ee Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Sat, 7 Mar 2026 22:56:25 +0000 Subject: [PATCH 1/2] Initial plan From b45ed31b8adf4dff8baba331fa37b84ecfc157c2 Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Sat, 7 Mar 2026 22:58:58 +0000 Subject: [PATCH 2/2] docs: add GitHub SSH troubleshooting guide for Windows and update README Co-authored-by: deilert00 <139483703+deilert00@users.noreply.github.com> --- README.md | 72 +++++ docs/github-ssh-troubleshooting.md | 409 +++++++++++++++++++++++++++++ 2 files changed, 481 insertions(+) create mode 100644 docs/github-ssh-troubleshooting.md diff --git a/README.md b/README.md index 3f50fc0..4619e97 100644 --- a/README.md +++ b/README.md @@ -250,6 +250,78 @@ Note: - E2E needs stable data: - use `npm run web:e2e` and `npm run test:e2e:full` +### SSH / GitHub Authentication (Windows) + +If `git push` or `git clone` fails with `Permission denied (publickey)` on Windows, +work through the checklist below. A [full guide](docs/github-ssh-troubleshooting.md) +is available in `docs/github-ssh-troubleshooting.md`. + +**Quick steps:** + +1. **Verify your key pair exists** + + ```bash + ls ~/.ssh + # Expect: id_ed25519 + id_ed25519.pub (or id_rsa / id_rsa.pub) + ``` + + Generate a new key if none exists: + + ```bash + ssh-keygen -t ed25519 -C "your_email@example.com" + ``` + +2. **Add the key to ssh-agent** + + Git Bash: + + ```bash + eval "$(ssh-agent -s)" + ssh-add ~/.ssh/id_ed25519 + ``` + + PowerShell (run as Administrator once): + + ```powershell + Set-Service -Name ssh-agent -StartupType Automatic + Start-Service ssh-agent + ssh-add "$env:USERPROFILE\.ssh\id_ed25519" + ``` + +3. **Upload your public key to GitHub** + + ```bash + cat ~/.ssh/id_ed25519.pub # copy the full output + ``` + + Then add it at . + +4. **Test the connection** + + ```bash + ssh -T git@github.com + # Success: Hi ! You've successfully authenticated… + ``` + +5. **Debug with verbose output** if the test still fails: + + ```bash + ssh -vvv git@github.com + ``` + + See the [full guide](docs/github-ssh-troubleshooting.md) for what each log line + means and how to handle firewalls, multiple keys, and `~/.ssh/config`. + +6. **PAT fallback** — if SSH cannot be made to work (corporate proxy, managed device), + switch to HTTPS and authenticate with a Personal Access Token: + + ```bash + git remote set-url origin https://github.com/deilert00/Goald.git + # Enter your GitHub username + PAT when prompted + ``` + + Full instructions: [docs/github-ssh-troubleshooting.md § PAT Fallback](docs/github-ssh-troubleshooting.md#7-pat-fallback-https-authentication) + ## Notes For Contributors - Keep selectors and user-facing labels stable for E2E reliability. diff --git a/docs/github-ssh-troubleshooting.md b/docs/github-ssh-troubleshooting.md new file mode 100644 index 0000000..e18a580 --- /dev/null +++ b/docs/github-ssh-troubleshooting.md @@ -0,0 +1,409 @@ +# GitHub SSH Public Key Authentication — Windows Troubleshooting Guide + +This guide helps Windows users diagnose and fix SSH public-key authentication failures +when connecting to GitHub (`git clone`, `git push`, `git pull`, etc.). +It covers key generation, ssh-agent setup, uploading the public key to GitHub, the +`~/.ssh/config` file, handling multiple keys, verbose debug output, and a +Personal Access Token (PAT) fallback for when SSH is not viable. + +--- + +## Quick-Start Checklist + +Run through these steps in order. Each step has a dedicated section below. + +1. [Verify your SSH key pair exists](#1-verify-your-ssh-key-pair-exists) +2. [Start ssh-agent and add your key](#2-start-ssh-agent-and-add-your-key) +3. [Copy the public key to GitHub](#3-copy-the-public-key-to-github) +4. [Check (or create) your `~/.ssh/config`](#4-check-or-create-your-sshconfig) +5. [Handle multiple SSH keys](#5-handle-multiple-ssh-keys) +6. [Run a verbose connectivity test](#6-run-a-verbose-connectivity-test) +7. [PAT fallback (HTTPS authentication)](#7-pat-fallback-https-authentication) + +--- + +## 1. Verify Your SSH Key Pair Exists + +Open **Git Bash**, **Windows Terminal**, or **PowerShell** and run: + +```powershell +ls "$env:USERPROFILE\.ssh" +# Git Bash / WSL equivalent: +ls ~/.ssh +``` + +You should see at least one key pair, e.g. `id_ed25519` + `id_ed25519.pub` +(or `id_rsa` + `id_rsa.pub`). + +### Generate a new key if none exists + +```bash +# Recommended: Ed25519 key (modern, fast, compact) +ssh-keygen -t ed25519 -C "your_email@example.com" + +# Legacy fallback: RSA 4096-bit key +ssh-keygen -t rsa -b 4096 -C "your_email@example.com" +``` + +Accept the default path (`~/.ssh/id_ed25519`) or choose a custom path. +**Set a passphrase** — it protects the key if your machine is compromised. + +After generation confirm the files exist: + +```bash +ls ~/.ssh +# Expected: +# id_ed25519 ← private key (keep secret, never share) +# id_ed25519.pub ← public key (this is what you upload to GitHub) +``` + +--- + +## 2. Start ssh-agent and Add Your Key + +On Windows, ssh-agent must be running **and** your key must be loaded before SSH +connections to GitHub will succeed. + +### Option A — Git Bash (easiest) + +Git Bash ships with a helper. Add the following to `~/.bashrc` (or `~/.bash_profile`) +so it runs automatically in every new terminal: + +```bash +# ~/.bashrc — auto-start ssh-agent and load the default key +eval "$(ssh-agent -s)" +ssh-add ~/.ssh/id_ed25519 +``` + +To apply immediately without restarting your terminal: + +```bash +source ~/.bashrc +``` + +### Option B — PowerShell (Windows built-in OpenSSH) + +Run PowerShell **as Administrator** once to enable the service: + +```powershell +# Enable and start the OpenSSH Authentication Agent service +Set-Service -Name ssh-agent -StartupType Automatic +Start-Service ssh-agent + +# Add your key +ssh-add "$env:USERPROFILE\.ssh\id_ed25519" +``` + +Verify it loaded: + +```powershell +ssh-add -l +# Expected: fingerprint + key path +# "The agent has no identities" means the key was NOT added. +``` + +### Option C — WSL (Windows Subsystem for Linux) + +Inside your WSL distribution, treat it like Linux: + +```bash +eval "$(ssh-agent -s)" +ssh-add ~/.ssh/id_ed25519 +``` + +> **Tip:** If you keep your keys in the Windows filesystem (`/mnt/c/Users//.ssh/`), +> WSL requires permissions `600` on the private key: +> +> ```bash +> chmod 600 /mnt/c/Users//.ssh/id_ed25519 +> ``` + +--- + +## 3. Copy the Public Key to GitHub + +### Step 1 — Print your public key + +```bash +# Git Bash / WSL +cat ~/.ssh/id_ed25519.pub + +# PowerShell +Get-Content "$env:USERPROFILE\.ssh\id_ed25519.pub" +``` + +The output looks like: + +``` +ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAA... your_email@example.com +``` + +Copy the **entire line** including the `ssh-ed25519` prefix and the comment at the end. + +### Step 2 — Add the key on GitHub + +1. Go to **GitHub → Settings → SSH and GPG keys** + (direct link: ) +2. Click **New SSH key**. +3. Give it a recognizable **Title** (e.g. `Work laptop – Ed25519 2025`). +4. Paste the public key text into the **Key** field. +5. Click **Add SSH key** and confirm with your GitHub password if prompted. + +### Verify the key is recognized + +```bash +ssh -T git@github.com +# Success: Hi ! You've successfully authenticated… +# Failure: Permission denied (publickey). +``` + +--- + +## 4. Check (or Create) Your `~/.ssh/config` + +The config file tells SSH which key to use for which host. + +### View the current config + +```bash +cat ~/.ssh/config +# PowerShell: +Get-Content "$env:USERPROFILE\.ssh\config" +``` + +### Minimal config for GitHub + +If the file does not exist (or is missing a `github.com` entry), create/edit it: + +``` +# ~/.ssh/config +Host github.com + HostName github.com + User git + IdentityFile ~/.ssh/id_ed25519 + AddKeysToAgent yes + IdentitiesOnly yes +``` + +`IdentitiesOnly yes` prevents SSH from trying every key in the agent — useful when +you have many keys and GitHub rejects connections after too many failed attempts. + +> **Windows path note:** In Git Bash and WSL, `~` expands to the correct home +> directory. In native PowerShell use the full path: +> `C:/Users//.ssh/id_ed25519` (forward slashes work in OpenSSH on Windows). + +### Fix file permissions (Git Bash / WSL) + +SSH refuses to use keys or config files that are world-readable: + +```bash +chmod 700 ~/.ssh +chmod 600 ~/.ssh/config +chmod 600 ~/.ssh/id_ed25519 +chmod 644 ~/.ssh/id_ed25519.pub +``` + +On Windows with native OpenSSH, right-click the private key file → **Properties → +Security** → ensure only your user account has access (remove `SYSTEM`, `Administrators` +entries if SSH complains about permissions). + +--- + +## 5. Handle Multiple SSH Keys + +If you have keys for different GitHub accounts (personal vs. work) or other services, +use `Host` aliases in `~/.ssh/config`: + +``` +# Personal GitHub account +Host github-personal + HostName github.com + User git + IdentityFile ~/.ssh/id_ed25519_personal + IdentitiesOnly yes + AddKeysToAgent yes + +# Work GitHub account +Host github-work + HostName github.com + User git + IdentityFile ~/.ssh/id_ed25519_work + IdentitiesOnly yes + AddKeysToAgent yes +``` + +When cloning or adding a remote, replace `github.com` with the alias: + +```bash +# Personal repo +git clone git@github-personal:personal-org/repo.git + +# Work repo +git clone git@github-work:work-org/repo.git + +# Update an existing remote to use the alias +git remote set-url origin git@github-work:work-org/Goald.git +``` + +Verify each alias independently: + +```bash +ssh -T git@github-personal +ssh -T git@github-work +``` + +### List all keys currently loaded in the agent + +```bash +ssh-add -l +``` + +### Remove all keys and re-add only the one you need + +```bash +ssh-add -D # remove all +ssh-add ~/.ssh/id_ed25519_work # add specific key +``` + +--- + +## 6. Run a Verbose Connectivity Test + +When `ssh -T git@github.com` fails, add verbosity flags to see exactly where it +breaks down: + +```bash +# Level 1 — basic handshake info +ssh -v git@github.com + +# Level 2 — key negotiation details +ssh -vv git@github.com + +# Level 3 — maximum verbosity (full packet trace) +ssh -vvv git@github.com +``` + +### What to look for in the output + +| Log line | Meaning | +|----------|---------| +| `Connecting to github.com … port 22` | Network connection established | +| `Server host key: …` | GitHub's host key received | +| `Offering public key: ~/.ssh/id_ed25519` | SSH is trying your key | +| `Authenticated to github.com` | ✅ Success | +| `Permission denied (publickey)` | Key not accepted — check steps 2–4 | +| `Connection refused` | Port 22 is blocked — try port 443 (see below) | +| `No more authentication methods` | Agent has no keys loaded — see step 2 | + +### Fallback: SSH over HTTPS port 443 + +Corporate firewalls often block port 22. GitHub supports SSH over port 443: + +``` +# ~/.ssh/config +Host github.com + HostName ssh.github.com + Port 443 + User git + IdentityFile ~/.ssh/id_ed25519 + IdentitiesOnly yes +``` + +Test it: + +```bash +ssh -T -p 443 git@ssh.github.com +``` + +--- + +## 7. PAT Fallback (HTTPS Authentication) + +If SSH cannot be made to work (strict corporate proxy, managed device policy, etc.), +you can authenticate over HTTPS using a **Personal Access Token (PAT)** instead. + +### Create a PAT on GitHub + +1. Go to **GitHub → Settings → Developer settings → Personal access tokens → Tokens (classic)** + (direct link: ) +2. Click **Generate new token (classic)**. +3. Set an **Expiration** (90 days is a reasonable default). +4. Select scopes: + - `repo` — full repository access (required for private repos) + - `workflow` — if you trigger GitHub Actions via `git push` +5. Click **Generate token** and **copy it immediately** — GitHub shows it only once. + +### Use the PAT as your Git password + +When prompted for credentials, enter: +- **Username:** your GitHub username +- **Password:** the PAT (not your GitHub account password) + +### Store the PAT in Git Credential Manager (recommended) + +Windows ships with **Git Credential Manager (GCM)**, which securely stores tokens in +the Windows Credential Store so you are not prompted every time: + +```bash +# Confirm GCM is configured (should already be set by Git for Windows) +git config --global credential.helper +# Expected: manager (or manager-core on older versions) + +# Clone a repo — you will be prompted once, then GCM caches the token +git clone https://github.com/deilert00/Goald.git +``` + +To update or clear a stored credential: + +```powershell +# Remove a cached GitHub credential (forces re-prompt on next use) +git credential reject << EOF +protocol=https +host=github.com +EOF +``` + +Or open **Control Panel → Credential Manager → Windows Credentials** and remove the +`git:https://github.com` entry. + +### Switch an existing repo from SSH to HTTPS + +```bash +# Check current remote +git remote -v + +# Switch to HTTPS +git remote set-url origin https://github.com/deilert00/Goald.git + +# Verify +git remote -v +``` + +### Switch back from HTTPS to SSH (once SSH is working) + +```bash +git remote set-url origin git@github.com:deilert00/Goald.git +``` + +--- + +## Common Error Reference + +| Error message | Likely cause | Fix | +|---------------|--------------|-----| +| `Permission denied (publickey)` | Key not on GitHub or not in agent | Steps 2–3 | +| `The agent has no identities` | Key not added to ssh-agent | Step 2 | +| `Bad permissions` / `WARNING: UNPROTECTED PRIVATE KEY FILE` | Key file permissions too open | Step 4 | +| `Connection refused (port 22)` | Firewall blocking SSH port | Step 6 — port 443 fallback | +| `Host key verification failed` | `~/.ssh/known_hosts` stale entry | `ssh-keygen -R github.com` then retry | +| `Could not resolve hostname github.com` | DNS / network issue | Check network; verify proxy settings | +| `sign_and_send_pubkey: signing failed` | Hardware key or passphrase issue | Re-add key: `ssh-add ~/.ssh/id_ed25519` | + +--- + +## See Also + +- [GitHub Docs — Connecting to GitHub with SSH](https://docs.github.com/en/authentication/connecting-to-github-with-ssh) +- [GitHub Docs — Creating a personal access token](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token) +- [OpenSSH for Windows — Microsoft Docs](https://learn.microsoft.com/en-us/windows-server/administration/openssh/openssh_overview) +- [Git Credential Manager](https://github.com/git-ecosystem/git-credential-manager)