Single Sign-On using Kerberos authentication

[Alice kinjal]

Hi,

I am trying to implement SSO using JAAS and GSS API with Apache DS and Kerberos. I did the following steps-

1. Setup the KDC using Apache DS 1.5.1 and Apache Directory Studio 1.5.3
2. Created a JAAS config file with below details-
GSSClient{
com.sun.security.auth.module.Krb5LoginModule required
useTicketCache=false;
};
GSSServer{
com.sun.security.auth.module.Krb5LoginModule required
storeKey=true;
};
3. Created Server and Client classes
4. Ran server using the main method
5. When I try to run the Client code I get a timeout exception-
>>> KrbAsReq in createMessage
>>> KrbKdcReq send: kdc=localhost UDP:88, timeout=30000, number of retries =3, #bytes=238
>>> KDCCommunication: kdc=localhost UDP:88, timeout=30000,Attempt =1, #bytes=238
SocketTimeOutException with attempt: 1
>>> KDCCommunication: kdc=localhost UDP:88, timeout=30000,Attempt =2, #bytes=238
SocketTimeOutException with attempt: 2
>>> KDCCommunication: kdc=localhost UDP:88, timeout=30000,Attempt =3, #bytes=238
6. I am completely stuck and need advise.

Thanks.