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Free, Pro, & Team

Authentication

Authentication to GitHub

About authentication to GitHub

Create a strong password

Creating a strong password

Switching between accounts

Verifying devices on sign in

Verifying new devices when signing in

Update access credentials

Updating your GitHub access credentials

Manage personal access tokens

Managing your personal access tokens

Reviewing your SSH keys

Deploy keys

Reviewing your deploy keys

Token expiration

Token expiration and revocation

Review security log

Reviewing your security log

Security log events

Remove sensitive data

Removing sensitive data from a repository

About anonymized URLs

GitHub's IP addresses

About GitHub's IP addresses

SSH key fingerprints

GitHub's SSH key fingerprints

Sudo mode

Unauthorized access

Preventing unauthorized access

Viewing and managing sessions

Viewing and managing your sessions

Account security

Keeping your account and data secure

About 2FA

About two-factor authentication

About mandatory 2FA

About mandatory two-factor authentication

Configure 2FA

Configuring two-factor authentication

Configure 2FA recovery

Configuring two-factor authentication recovery methods

Access GitHub with 2FA

Accessing GitHub using two-factor authentication

Countries supporting SMS

Countries where SMS authentication is supported

Change 2FA method

Changing your two-factor authentication method

Troubleshooting 2FA

Troubleshooting two-factor authentication issues

Recover an account with 2FA

Recovering your account if you lose your 2FA credentials

Disable 2FA

Disabling two-factor authentication for your personal account

Secure your account with 2FA

Securing your account with two-factor authentication (2FA)

About passkeys

Manage your passkeys

Managing your passkeys

Sign in with a passkey

Signing in with a passkey

Authenticate with a passkey

Authenticating with a passkey

About SSH

SSH agent forwarding

Using SSH agent forwarding

Managing deploy keys

Check for existing SSH key

Checking for existing SSH keys

Generate new SSH key

Generating a new SSH key and adding it to the ssh-agent

Add a new SSH key

Adding a new SSH key to your GitHub account

Test your SSH connection

Testing your SSH connection

SSH key passphrases

Working with SSH key passphrases

Connect with SSH

Connecting to GitHub with SSH

Error: Host key verification failed

Permission denied other-user

Error: Permission to user/repo denied to other-user

SSL certificate problem

Error: SSL certificate problem, verify that the CA cert is OK

Recover SSH key passphrase

Error: Bad file number

Agent failure to sign

SSH key audit

Troubleshooting SSH

Commit signature verification

Displaying verification for all commits

Existing GPG keys

Generating a new GPG key

Add a GPG key

Tell Git about your signing key

Associate email with GPG key

Signing commits

Signing tags

Verify commit signatures

Check verification status

Use verified email in GPG key

Troubleshoot verification

Authentication documentation

Authenticating with single sign-on

Error: Permission denied (publickey)

Keep your account and data secure with features like two-factor authentication, SSH, and commit signature verification.

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