A colleague found out, that the certificate on the ADFS server has a automatic rollover and per default is valid for 1 year.
But after the rollover of the key the SAML authentication does not work anymore for IBM Notes clients. There´s a quite simple solution
>> "Re-Download" the "FederationMetadata.xml" file from the ADFS server and reimport this file in >> the IdPCat configuration.
Afterwards SAML authentication is working fine again.
A very interesting webcast about securing the LDAP server inside IBM Domino will be held:
This session will cover the topic of Domino as an LDAP client in Directory Assistance, emphasizing SSL connections to LDAP server and will also include a dive into Domino LDAP security configuration, SSL and POODLE vulnerabilities if Sametime uses Domino for its LDAP server.
After a presentation, attendees will be given an opportunity to ask our panel of experts questions. Throughout the event, attendees will also be encouraged to comment or ask questions in the IBM Connections Meetings Web chat
Topic: Securing Domino LDAP
Date: Wednesday, June 10, 2015
Time: 11:00 AM EDT (15:00 UTC/GMT, UTC-4 hours) for 60 minutes
https://apps.na.collabserv.com/meetings/join?id=2897-4178 Web conference password: webcas
Further informations ( like Dial-In numbers ) can be found here.