1. Enjoy this blog? My new book, ASP.NET Core in Action, Second Edition is available now, and supports .NET Core 3.1!
2. Fixing Nginx "upstream sent too big header" error when running an ingress controller in Kubernetes

   This post describes how to fix the error "upstream sent too big header while reading response header from upstream" when running IdentityServer 4 behind an…

   March 13, 2018 in DevOps Kubernetes IdentityServer Issues
3. Gotchas upgrading from IdentityServer 3 to IdentityServer 4

   This post covers a couple of gotchas I experienced upgrading an IdentityServer 3 implementation to IdentityServer 4. In particular, changing URLs and a…

   February 20, 2018 in ASP.NET Core ASP.NET Core Identity IdentityServer Security Auth Issues
4. Debugging JWT validation problems between an OWIN app and IdentityServer4

   This post describes an issue that arose migrating from IdentityServer3 to IdentityServer4, where an OWIN app cannot validate a JWT issued by IdentityServer4…

   October 10, 2017 in ASP.NET Core ASP.NET Core Identity IdentityServer