authy-ssh
Adds two-factor authentication to SSH servers using Authy's API for enhanced security.
What is authy-ssh?
Authy SSH is a library that enables two-factor authentication for SSH servers by integrating with Authy's API. It enhances server security by requiring users to provide a time-based one-time password from the Authy app in addition to their SSH credentials. This helps prevent unauthorized access even if passwords are compromised.
System administrators and DevOps engineers who manage SSH servers and need to implement stronger authentication mechanisms. It's also relevant for organizations requiring compliance with security standards that mandate multi-factor authentication.
Developers choose Authy SSH for its seamless integration with Authy's trusted 2FA service, providing a reliable and easy-to-implement security layer for SSH. Its legacy support ensures compatibility with existing systems, though note that the project is currently unmaintained.
Overview
Easy two-factor authentication for ssh servers
Use Cases
Best For
- Adding two-factor authentication to SSH servers in production environments
- Enhancing security for cloud-based or remote server access
- Meeting compliance requirements for multi-factor authentication on SSH
- Integrating Authy's 2FA service into existing SSH infrastructure
- Protecting servers from brute-force or credential-stuffing attacks
- Legacy system security upgrades where modern 2FA is needed
Not Ideal For
- Organizations requiring actively maintained security libraries for vulnerability patches
- Teams using alternative 2FA services like Google Authenticator or hardware tokens
- Environments with strict policies against third-party API dependencies
- Projects needing modern SSH authentication methods beyond password-based 2FA
Pros & Cons
Pros
Seamlessly connects to Authy's trusted 2FA service for TOTP validation, as it leverages Authy's API for secure authentication.
Adds a robust layer of two-factor authentication to SSH servers with straightforward integration, per its philosophy of easy setup.
Maintains support for older systems through documented legacy code, ensuring it works with existing SSH configurations.
Helps meet security standards that mandate multi-factor authentication for SSH, as noted in its value proposition for compliance requirements.
Cons
No longer actively developed or updated by Authy, as the README explicitly states it's unmaintained, posing security risks.
Tied to Authy's API, which could change or be discontinued, limiting flexibility and creating dependency on a third-party service.
Current README is minimal, redirecting to a legacy document, making setup and troubleshooting difficult for new users.
Requires network access to Authy's API for TOTP validation, which can fail in offline or restricted environments.
Frequently Asked Questions
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