issue with KDC

[sunil chandran]

 This is Sunil here, i am working on the cross domain authentication usingkerberos, i have two domains(xx.com) and(co.yy), and i am in a dilemma as to install 2KDC in both the domains or is it sufficient for the kdc to be installed in onlyone single domain, and register the other domain as just the user of the domainin which the kdc is installed.Also I’d like to avoid cross realms scenario,because we should set up another KDC.(thats bit difficult)is there any other possibilities of using two domain for kerberos without having KDC on both the domains. please do clear my doubt. Looking for an answer