Identity Management
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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 RAM and Memory Requirements: Usage and Heap Sizing
Learn Keycloak's RAM and hardware requirements: 1250 MB per-pod baseline, heap at 70% of the container limit, session cache caps and vCPU per login rate.
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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.