Tag: Troubleshooting

Read the manuals and event logs – those are written by smart people.

This post will be my personal collection of funny, smart, unique sayings/jokes or aphorisms around IT, security or troubleshooting I've heard, saw, or read somewhere or got from my own experience. 6 hours of debugging can save you about 5 minutes of reading the documentation. There are 10 types of people - those who understand … Continue reading Read the manuals and event logs – those are written by smart people.

Federated applications (CRM and IIS) ADFS Single Sign-On (SSO) troubleshooting with Fiddler

Recently had very interesting issue to troubleshoot. This (long 😊 ) troubleshooting description for sure will help many to understand the ADFS Single Sign-On (SSO) flow and how to read the Fiddler traces. Environment: ADFS 3.0, CRM 2013, IIS 8.5 running a site. Both the CRM and the IIS site are federated with the ADFS. … Continue reading Federated applications (CRM and IIS) ADFS Single Sign-On (SSO) troubleshooting with Fiddler

Azure Multi-Factor Authentication Server with ADFS – EventID 105 troubleshooting.

One of the customers was following these instructions to configure Azure MFA Server to work with ADFS - https://docs.microsoft.com/en-us/azure/multi-factor-authentication/multi-factor-authentication-get-started-adfs-w2k12 In his environment the MFA and ADFS roles were installed on separate servers (1 MFA and 2 ADFS servers with SQL database). After carefully completing instructions, we saw following errors in the ADFS Admin logs after … Continue reading Azure Multi-Factor Authentication Server with ADFS – EventID 105 troubleshooting.