Tag

keycloak

Articles tagged with keycloak.

troubleshooting

Keycloak Not Sending Emails? How to Fix It

Fix Keycloak email problems: SMTP configuration, TLS/SSL ports, authentication, the 'from' address, app passwords, and testing the connection in the…

Guilliano Molaire Guilliano Molaire 10 min read
Definition and Basics

Is Keycloak Right for Your B2B SaaS? A Decision Guide

Is Keycloak right for your B2B SaaS? An honest decision guide on multi-tenancy, enterprise SSO, SCIM, flat pricing, and the…

Guilliano Molaire Guilliano Molaire 11 min read
troubleshooting

Fixing Keycloak 502 Bad Gateway Errors

Fix Keycloak 502 Bad Gateway errors behind a reverse proxy: proxy headers, timeouts, health checks, hostname configuration, and startup timing…

Guilliano Molaire Guilliano Molaire 10 min read
troubleshooting

Fixing CORS Errors with Keycloak

Fix Keycloak CORS errors: configure Web Origins on the client, understand preflight requests, and resolve 'blocked by CORS policy' issues…

Guilliano Molaire Guilliano Molaire 10 min read
comparisons

Zitadel Alternatives for Developers

Compare the best Zitadel alternatives for developers: Keycloak, Authentik, Ory, FusionAuth, SuperTokens, Auth0, and WorkOS, by license, deployment, and protocols.

Guilliano Molaire Guilliano Molaire 13 min read
Definition and Basics

Token Introspection vs Local JWT Validation in Keycloak

Keycloak token introspection vs local JWT validation: how each works, the latency and revocation trade-offs, and which to use for…

Guilliano Molaire Guilliano Molaire 10 min read
comparisons

Keycloak vs Authelia: Self-Hosted Auth Comparison

Keycloak vs Authelia compared across architecture, protocols, MFA, federation, and footprint. A fair, honest guide to picking the right self-hosted…

Guilliano Molaire Guilliano Molaire 11 min read
Definition and Basics

Keycloak Offline Tokens Explained

What Keycloak offline tokens are, how the offline_access scope works, how they differ from regular refresh tokens, and when to…

Guilliano Molaire Guilliano Molaire 11 min read
Tutorials

How to Run the Keycloak Admin Console on a Separate Hostname Behind nginx (KC_HOSTNAME_ADMIN)

KC_HOSTNAME_ADMIN does work behind nginx. Serve the Keycloak admin console on a separate hostname with the proxy headers and server…

Guilliano Molaire Guilliano Molaire 10 min read
Tutorials

Token and Claims Modeling in Keycloak: Reproducing Legacy IdP Behavior

Reproduce legacy IdP tokens in Keycloak so apps survive cutover. Build a claim contract, map UAA/SiteMinder/Okta claims, and diff old…

George Thomas George Thomas 16 min read

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