Domain Trust Vs Adfs
Surely there is an alternative to setting up 6 servers while maintaining security and redundancy.
Domain trust vs adfs. Ad fs requires a full writable domain controller to function as opposed to a read only domain controller. This task will import the service manager service portal host and ca certificate into the idp adfs to create a bidirectional trust between the sp and idp. The adfs service account needs to have rights to read attributes for users in the trusted domain. Install the service manager service portal ca certificate from the service manager service portal server in the trusted root certification authorities.
Install the service manager service portal ca and host certificate in adfs. Pim trust 0x00000400 if this bit and the tate treat as external bit are set then a cross forest trust to a domain is to be treated as privileged identity management trust for the purposes of sid filtering. This problem occurs due to having a one way domain trust configured. A domain trust with another domain forest will give you support if the application is using ldap kerberos ntlm for authentication.
It really comes down on the type of authentication the application supports. Saw this where it explains external trust. Keep in mind adfs only supports applications that are claims aware saml wsfed. If a planned topology includes a read only domain controller the read only domain controller can be used for authentication but ldap claims processing will require a connection to the writable domain controller.
Though both provide access to resource say web application to users in other forest there is lot of difference between the two this do. Some of the it professionals may have doubt on when to use active directory domain trust and when to use active directory federation services. Once the federation trust created. I was suggested to setup an adfs farm with 6 servers 2 for wid 2 for proxy and 2 for nlb.