Articles

Why we introduced the Supporter License
18 Aug 2026
Supporting the future of free, open identity while giving you access to every IdentityServer.com product

Kieran Odinius

Job Role

Head of Sales

Why we introduced the Supporter License
Quick Start Open.IdentityServer SSO with Management Console
10 Jun 2026
Do you want to create a Single Sign-On (SSO) solution based on Open.IdentityServer? Do you want a management UI for managing users and IdentityServer configuration? Then look no further; our Open.IdentityServer & AdminUI code template will have you up and running in less than 15 minutes.

Nacho Escrig

Job Role

Software Developer

Quick Start Open.IdentityServer SSO with Management Console
Free Open Source IdentityServer, Forever.
02 Jun 2026
Having been part of the IdentityServer ecosystem for over a decade, we now feel it's the right time to offer .NET developers a free, forever IdentityServer SDK. Read this article to know more about why.

Kieran Odinius

Job Role

Head of Sales

Free Open Source IdentityServer, Forever.
Helping to move from per customer on-premise solution to multi tenanted SaaS
22 Apr 2026
How we helped XnLeisure on their journey from an on-premise solution to a multi-tenanted SaaS solution, in a multi-phased approach.

Andrew Clymer

Job Role

Managing Director

Helping to move from per customer on-premise solution to multi tenanted SaaS
Quick Start Duende IdentityServer SSO with Management Console
28 Aug 2023
Do you want to create a Single Sign-On (SSO) solution based on Duende IdentityServer? Do you want a management UI for managing users and IdentityServer configuration? Then look no further; our Duende IdentityServer & AdminUI code template will have you up and running in less than 15 minutes.

Nacho Escrig

Job Role

Software Developer

Quick Start Duende IdentityServer SSO with Management Console
The Dangers of Considering Email as Two-Factor Authentication
27 Jun 2023
It is important to consider the potential risks associated with using email as a form of two-factor authentication. It may be worth exploring alternative options that offer increased security.

Paul Brummitt

Job Role

Software Developer

The Dangers of Considering Email as Two-Factor Authentication
Implementing CIBA in Duende IdentityServer
16 Nov 2022
Client-Initiated Backchannel Authentication (CIBA) is a new OpenID Connect specification that describes decoupled authentication flows. This article describes how to implement a CIBA flow inside Duende IdentityServer.

Ben Archer

Job Role

Software Developer

Implementing CIBA in Duende IdentityServer
IdentityServer4 End-of-life (EOL) - What Next?
04 Nov 2022
IdentityServer4 will no longer be supported from 13th December 2022. We outline our product-specific support and migration steps to Duende IdentityServer

Kieran Odinius

Job Role

Head of Sales

IdentityServer4 End-of-life (EOL) - What Next?
Efficient Cleaning Up of the Persisted Grant Table
15 Aug 2022
IdentityServer uses a persisted grants table to store reference and refresh tokens. Clean-up code needs to be run periodically to remove expired tokens. The built-in functionality works for small/medium usage, but alternative approaches should be considered for high usage. This article outlines an alternative approach using a SQL stored procedure.

Andrew Clymer

Job Role

Managing Director

Efficient Cleaning Up of the Persisted Grant Table
Installing IdentityServer and AdminUI on Linux
24 Jun 2021
AdminUI has recently been made available as a universal project, meaning we now support a Linux installation scenario rather than recommending Docker as a multiplatform approach. This article will go through the steps needed to get AdminUI up and running on Linux.

Sam Brinsden

Job Role

Software Developer

Installing IdentityServer and AdminUI on Linux
Account Enumeration How To Harden Your SSO Solution
26 Feb 2021
An account enumeration attack involves an attacker attempting an action, such as authentication or password reset, and looking for differences between responses to gain information on the system. Learn how to harden your SSO solution against these attacks.

Jo Stevens

Job Role

Software Developer

Account Enumeration How To Harden Your SSO Solution
Announcing Support for Duende IdentityServer
22 Jan 2021
When will products be supporting Duende IdentityServer? Will I have to pay for my component to work with Duende IdentityServer? How can I keep up to date with product releases?

Kieran Odinius

Job Role

Head of Sales

Announcing Support for Duende IdentityServer
Online Tutorials for Getting Started with IdentityServer4 and AdminUI
09 Nov 2020
Looking to get started with IdentityServer and AdminUI? Rock Solid Knowledge has released four new online tutorials to help you kick start your single sign-on solution (SSO).

Kieran Odinius

Job Role

Head of Sales

Online Tutorials for Getting Started with IdentityServer4 and AdminUI

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Vodafone
REPower
Deloitte
Tata Consultancy Services
Bouygues Telecom
British Council
Organisation for the Prohibition of Chemical Weapons
Project Management Institute (PMI)
Verizon
Sandvik Coromant
Schibsted
Stericycle
ICAEW
JP Morgan