TLS dan transport for Keycloak

high5 checks

TLS protects credentials and session cookies in transit. A valid chain, a modern protocol and no downgrade path are the baseline.

What Keycloak must have

  • Certificate chain validates against public trust stores
  • Expiry monitored automatically, no manual renewal
  • TLS 1.2 and 1.3 only; 1.0 and 1.1 disabled
  • HTTP redirects to HTTPS with a permanent redirect
  • No mixed content on any page

How to fix it

  1. 1Enable auto-renewal with your host or CDN and alert at 21 days remaining
  2. 2Force HTTPS at the edge and remove any route that serves plain HTTP

Keycloak context

Open-source identity and access management server.

The admin console must never be publicly reachable; enforce MFA for admin accounts.