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Insights on Identity, Security & Keycloak

Tutorials, deep dives, and best practices from the Skycloak team.

Definition and Basics

SSO Implementation Guide: SAML and OIDC with Keycloak

Comprehensive SSO implementation guide for developers covering SAML vs OIDC protocols, SP and IdP-initiated flows, single logout, and Keycloak configuration.

Guilliano Molaire Guilliano Molaire 12 min read
troubleshooting

Keycloak User Not Found: Debugging Identity Resolution

Troubleshoot Keycloak user not found errors caused by username case sensitivity, realm mismatch, LDAP sync issues, IdP linking, and disabled…

Guilliano Molaire Guilliano Molaire 9 min read
Tutorials

Keycloak Theme Customization: From Default to Branded Login

Complete guide to Keycloak theme customization including login, account, and admin email themes with FreeMarker templates and production CSS examples.

Guilliano Molaire Guilliano Molaire 10 min read
comparisons

AWS Cognito Alternatives: Open Source and Managed Options

Compare AWS Cognito alternatives including Keycloak, Auth0, Firebase Auth, SuperTokens, and Ory for open-source authentication and identity management.

Guilliano Molaire Guilliano Molaire 8 min read
auth-patterns

Keycloak Token Exchange: Practical Implementation Guide

Implement Keycloak token exchange (RFC 8693) for impersonation, delegation, and cross-realm token exchange with working Node.js and Java code examples.

Guilliano Molaire Guilliano Molaire 9 min read
keycloak-operations

Is Keycloak Production Ready? A Practical Checklist

A practical production readiness checklist for Keycloak deployments covering PostgreSQL tuning, clustering, TLS, monitoring, backups, and security hardening.

Guilliano Molaire Guilliano Molaire 8 min read
Definition and Basics

How OAuth 2.0 Works: A Developer’s Visual Guide

Visual developer guide to OAuth 2.0 grant types including authorization code with PKCE, client credentials, and device flow with Keycloak…

Guilliano Molaire Guilliano Molaire 11 min read
JWT Bearer Token
Articles

JWT Authorization Grant in Keycloak with External IdP

Learn how to implement JWT Authorization Grant in Keycloak using Auth0 as an external Identity Provider, including setup steps and…

George Thomas George Thomas 3 min read
migration-guides

How to Migrate from Firebase Auth to Keycloak

Step-by-step guide to migrating from Firebase Auth to Keycloak. Covers user export, password hash handling, social provider migration, and SDK…

Guilliano Molaire Guilliano Molaire 14 min read
Tutorials

Keycloak LDAP Integration: Step-by-Step Tutorial

Integrate Keycloak with LDAP directories like OpenLDAP and 389 Directory Server. Step-by-step setup for user federation, group sync, and attribute…

Guilliano Molaire Guilliano Molaire 9 min read

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