Authentication on Paul Clephan | Intune, ConfigMgr, SCCM & Windows Management Bloghttps://clefsoft.co.uk/tags/authentication/Recent content in Authentication on Paul Clephan | Intune, ConfigMgr, SCCM & Windows Management BlogHugoen-gbSun, 30 Aug 2026 00:00:00 +0000Entra Kerberos Key Rotation: More Reliable Incoming Trust Referral Flowshttps://clefsoft.co.uk/news/microsoft-entra-kerberos-key-rotation-improved-reliability-for-incoming-trust-re/Sun, 30 Aug 2026 00:00:00 +0000https://clefsoft.co.uk/news/microsoft-entra-kerberos-key-rotation-improved-reliability-for-incoming-trust-re/Microsoft Entra Kerberos key rotation now handles incoming trust referral flows more reliably, improving hybrid authentication stability for admins.Microsoft Entra Kerberos Key Rotation: Better Reliability for Incoming Trust Referralshttps://clefsoft.co.uk/news/microsoft-entra-kerberos-key-rotation-improved-reliability-for-incoming-trust-re/Sat, 22 Aug 2026 00:00:00 +0000https://clefsoft.co.uk/news/microsoft-entra-kerberos-key-rotation-improved-reliability-for-incoming-trust-re/Microsoft Entra improves Kerberos key rotation reliability for incoming trust referral flows, reducing authentication disruptions in hybrid environments.A Blank Page for Every Anonymous User: How One Global Auth Policy Broke Blazor's Own Framework Endpointshttps://clefsoft.co.uk/posts/blazor-fallbackpolicy-blank-page/Fri, 21 Aug 2026 09:15:00 +0100https://clefsoft.co.uk/posts/blazor-fallbackpolicy-blank-page/I added a public landing page to a Blazor Server app and it rendered as a blank white screen — not just that page, every page, for every anonymous user. No server-side exception. The cause was a global FallbackPolicy quietly gating Blazor’s own internal SignalR endpoints.Microsoft Entra Kerberos Key Rotation: More Reliable Rollovershttps://clefsoft.co.uk/news/microsoft-entra-kerberos-key-rotation-improved-reliability/Tue, 04 Aug 2026 00:00:00 +0000https://clefsoft.co.uk/news/microsoft-entra-kerberos-key-rotation-improved-reliability/Microsoft Entra now validates Kerberos tickets against both primary and secondary keys, reducing authentication failures during key rotation.Entra Kerberos Key Rotation: The Reliability Fix Worth Knowinghttps://clefsoft.co.uk/news/entra-kerberos-key-rotation-reliability/Sun, 02 Aug 2026 00:00:00 +0000https://clefsoft.co.uk/news/entra-kerberos-key-rotation-reliability/Kerberos key rotation could break authentication when referral tickets were signed with a secondary key. Entra now validates against both keys during rollover — the kind of fix you only appreciate after it’s bitten you.