Can anyone let me know how kerberos works with IIS, I can see the option of enabling "Use Kerberos" in IIS but not sure how it exactly works.How can I verify that the connection uses kerberos, is there any tool?Basically I need to authenticate user using kerberos authentication in asp.net. Reading some articles I can see windows domain controller itself uses kerberos authentication, so If I enable kerberos in IIS, does it actually use kerberos?Please guide me.