Hardware keys provide one of the industry's most secure ways to authenticate via SSH. They're designed to make it impossible to extract private keys and protect them against compromise. Hardware keys can also offer additional security features, such as user-presence confirmation, providing an extra factor during authentication.

Usually, such advanced security comes with added complexity and setup time. Termius simplifies using hardware keys on both mobile and desktop. You can generate a FIDO2 key, copy it to a server, and connect with just a few clicks.

What do you need to start?

You'll need a hardware security key that supports the FIDO2 protocol, such as YubiKey, Solo, OnlyKey, or Google Titan. Most other FIDO2-compatible security keys should also work seamlessly with Termius.
FIDO2 requires OpenSSH 8.4 or higher to be installed on your server.

Desktop

iOS

Android

Connect with FIDO2

To connect to a server using a FIDO2 key, follow these steps:

Make sure you have a FIDO2 key in Termius. If you don’t, generate or import one.
Create a New Host.
Enter the IP address, port, and username.
To link a FIDO2 Key with a host, click + FIDO2 and select a key.
Plug in your hardware key.
Click Connect.
During the connection, Termius may prompt you to confirm your presence. Touch your hardware key to confirm.

Desktop

iOS

Android

Connect with FIDO2

To connect to a server using a FIDO2 key, follow these steps:

Make sure you have a FIDO2 key in Termius. If you don’t, generate or import one.
Create a New Host.
Enter the IP address, port, and username.
To link a FIDO2 Key with a host, click + FIDO2 and select a key.
Plug in your hardware key.
Click Connect.
During the connection, Termius may prompt you to confirm your presence. Touch your hardware key to confirm.

Desktop

iOS

Android

Connect with FIDO2

To connect to a server using a FIDO2 key, follow these steps:

Make sure you have a FIDO2 key in Termius. If you don’t, generate or import one.
Create a New Host.
Enter the IP address, port, and username.
To link a FIDO2 Key with a host, click + FIDO2 and select a key.
Plug in your hardware key.
Click Connect.
During the connection, Termius may prompt you to confirm your presence. Touch your hardware key to confirm.

Desktop

iOS

Android

Connect with FIDO2

To connect to a server using a FIDO2 key, follow these steps:

Make sure you have a FIDO2 key in Termius. If you don’t, generate or import one.
Create a New Host.
Enter the IP address, port, and username.
To link a FIDO2 Key with a host, click + FIDO2 and select a key.
Plug in your hardware key.
Click Connect.
During the connection, Termius may prompt you to confirm your presence. Touch your hardware key to confirm.

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