User Card API Lockdown & Kerberos Issues
I have followed instructions from your videos for the User Card API lockdown and Kerberos setups. Both work internally if I use https://<server name>/hap but if I use the external address of https://www.schoolname.sch.uk/hap internally then kerberos authentication fails to work and automatically login and the User Card API gives me a 403 Access Denied. Any ideas on what would be causing this and where I should begin to look to resolve it. Is it something to do with reverse DNS lookups? if so do I need to enable this in my IIS config under the IP and domain restrictions? or is it to do with my main DC that deals with DNS.