# Page Not Found

The URL `admin-and-features/features-and-configuration/authentication` does not exist.

You might be looking for one of these pages:
- [SSH Authentication](https://docs.defguard.net/features/ssh-authentication.md)
- [Gateway notifications](https://docs.defguard.net/features/notifications/gateway-notifications.md)
- [Multi-Factor Authentication (MFA/2FA)](https://docs.defguard.net/features/wireguard/multi-factor-authentication-mfa-2fa.md)
- [New version notifications](https://docs.defguard.net/features/notifications/new-version-notifications.md)
- [Configuration](https://docs.defguard.net/features/ldap-and-active-directory-integration/configuration.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.defguard.net/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.defguard.net/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/features/ssh-authentication.md`)
- Use `Accept: text/markdown` header for content negotiation