# Linux ssh-keygen: Set Up SSH Key Authentication the Right Way

DevFeed: [Linux ssh-keygen: Set Up SSH Key Authentication the Right Way](<https://devfeed.tech/articles/linux-ssh-keygen-set-up-ssh-key-authentication-the-right-way-20873.md>)

Original publisher: [Read original article](<https://linuxblog.io/linux-ssh-keygen-set-up-ssh-key-authentication-the-right-way/>)

Author: Hayden James

Published: 2026-08-03T10:53:19Z

Content type: tutorial

Language: en

Sources: [Hayden James](<https://devfeed.tech/sources/hayden-james.md>)

Topics: [OpenSSH](<https://devfeed.tech/topics/openssh.md>), [ssh](<https://devfeed.tech/topics/ssh.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [Authentication](<https://devfeed.tech/topics/authentication.md>), [Security](<https://devfeed.tech/topics/security.md>), [passwords](<https://devfeed.tech/topics/passwords.md>)

Tags: [authentication](<https://devfeed.tech/tags/authentication.md>), [blog](<https://devfeed.tech/tags/blog.md>), [guide](<https://devfeed.tech/tags/guide.md>), [linux](<https://devfeed.tech/tags/linux.md>), [openssh](<https://devfeed.tech/tags/openssh.md>), [password](<https://devfeed.tech/tags/password.md>), [private-key](<https://devfeed.tech/tags/private-key.md>), [public-key](<https://devfeed.tech/tags/public-key.md>), [security](<https://devfeed.tech/tags/security.md>), [server](<https://devfeed.tech/tags/server.md>), [ssh](<https://devfeed.tech/tags/ssh.md>), [sysadmins](<https://devfeed.tech/tags/sysadmins.md>)

## AI overview

A practical guide to setting up SSH key authentication on Linux with ssh-keygen. It covers generating key pairs, copying public keys to servers, disabling password login safely, configuring multiple identities, and using passphrases or FIDO2 security keys.

## Source excerpt

Password-based SSH login is a liability. This guide walks through generating SSH key pairs with ssh-keygen, deploying public keys, disabling password authentication, and managing multiple keys cleanly with ~/.ssh/config. Continue reading...