Alatalo, Antoni wrote:
> 
> Is it possible to create authentication via kerberos and if not 
> authenticated then username/password authentication?

Yes, I did exactly this with CAS 3.2 (now 3.2.1) for SPNEGO/Kerberos5 
and fall-back to LDAP bind request for MS AD if SPNEGO wasn't successful.

You can customize login-webflow.xml to achieve this.

Note that depending on your MS AD naming conventions (sAMAccountName and 
userPrincipalName) and your settings for properties 
principalWithDomainName and NTLMallowed your CAS client will receive 
different principal names.

Therefore I'm mapping the credential-dependent principal names to a 
generic principal name (in my case employeeNumber). See 
http://www.ja-sig.org/wiki/display/CASUM/Attributes how to configure 
such a LDAP-based mapping.

Thanks to the wonderful work of the CAS developers that works like a 
charm without writing own code (despite detailed issues with LDAPv3 
referrals still to be sorted out).

Ciao, Michael.
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