We are trying to integrate RSA SecurID authenticaion into Zimbra. Need pointers as to which module in Zimbra takes care of authentication. Infact i am stuck at the initial stage of not being able to install Zimbra properly on an RHEL machine. Can someone guide me on the same ? i've downloaded the zcs-5.0.14_GA_2850.RHEL4.20090303132820. is this right ?