Single Sign On
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What Is a Realm in Keycloak? What Lives Inside One
A Keycloak realm is an isolated tenant with its own users, clients and signing keys. What a realm holds, what stays server-wide, and how many to run.
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authentik vs Keycloak: Which One Belongs in Your Homelab
authentik vs Keycloak for a single mini-PC: footprint, forward auth, LDAP, realms, backups and licensing compared from the docs, with a clear pick.
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Keycloak Behind a Reverse Proxy: Fix 403 and Hostname Errors
Why Keycloak returns 403 behind a proxy, rejects redirect URIs, and issues tokens with the wrong issuer, and the exact options that resolve each case.
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Keycloak vs authentik vs Authelia: What to Self-Host
A protocol, architecture and footprint comparison of three self-hosted identity servers, and the deployment shapes each one is actually built for.
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What Is a Keycloak Realm? Realm vs Client and How to Create
A Keycloak realm is an isolated tenant with its own users, roles, clients and signing keys. Learn when to use one or several realms and how to create one.