Feb 6, 2025 · SSH key pairs are two cryptographically secure keys that can be used to authenticate a client to an SSH server. Each key pair consists of a public key and a private key. The private key is …

Ssh-keygen is a tool for creating new authentication key pairs for SSH. Such key pairs are used for automating logins, single sign-on, and for authenticating hosts.

Dec 12, 2025 · Public key authentication is the best way to secure SSH connections. Learn how to generate a key pair and securely access remote servers.

Jul 16, 2021 · Learn how to generate an SSH key pair on your computer, which you can then use to authenticate your connection to a remote server.

After you've checked for existing SSH keys, you can generate a new SSH key to use for authentication, then add it to the ssh-agent.

Dec 4, 2025 · Learn all about SSH keys, including how they work for authentication, what the key pair is, how to generate the public and private keys, and more.

Sep 23, 2025 · In this guide, we’ll walk through how to generate an SSH key pair on Linux, Windows (with PuTTY), and macOS/iOS, then show how to format and install the public key on a Linux server.

Aug 19, 2025 · Learn how to use ssh-keygen to generate and manage public-private key pairs across Linux, Windows, and macOS systems with practical step-by-step examples.

Jan 26, 2026 · Quick reference for SSH commands and configuration SSH Keys Generate and manage SSH keys.

To use key authentication, you must first have a key pair: a public key and a corresponding private key. You can either use an existing key pair or generate a new one.