On RHEL 5.10 and 5.11, if "Smart Card Support" is enabled and a smartcard is inserted on the login screen, a PIN prompt may not show up until you hit the "Enter" key. There is a workaround discussed in this KB.
Applies to:
All Versions of Centrify DirectControl on RHEL 5.10 and RHEL 5.11
Problem:
On RHEL 5.10 and 5.11, if "Smart Card Support" is enabled and a smart card is inserted on the login screen, a PIN prompt may not show up until after the "Enter" key is hit.
Cause:
There are issues with the gdm and nss packages in RHEL 5.10 and 5.11, particularly the libsoftokn3.so library that does not allow the PIN prompt to appear.
Workaround:
Replace libsoftokn3.so with the old one on RHEL 5.9, which is a shared object file in NSS package
The version of NSS from RHEL 5.9 is: nss-3.13.5-8.el5