Bug 161753

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Description of problem:
I have a test network containing a network information server that provides an LDAP service.  

On the network, I have a laptop client that uses LDAP to lookup GIDs for group names.  The laptop is using pam_ccreds to cache authentication information and nscd to cache other information.  All of the nscd services have a very high time-to-live.

My use of pam_ccreds and nscd is to ensure that the laptop is usable away from the network.

Version-Release number of selected component (if applicable):
nscd-2.3.5-11

How reproducible:
Always

Steps to Reproduce:
There are three scenarios I have been using to try and figure out what is wrong.

Scenario 1: I turn on my laptop when it is connected to my network and my LDAP server is available.  In this case, "id -ng" says, "mike."  This is my test account's default group.  This is good.

Scenario 2: I turn on my laptop when it is disconnected from any network.  In this case, "id -ng" says, "mike."  This is also good.

Scenario 3: I turn on my laptop when it is connected to a network but my LDAP server is not available.  In this case, "id -ng" says, "id: cannot find group name for ID 500."  This is not good.

Additional info:

I can not figure out why scenario three fails.  Using the "-d" flag does not help, it just tells me that the group entries don't exist, not why:

4618: handle_request: request received (Version = 2) from PID 4626
4618:   GETFDGR
4618: provide access to FD 9, for group
4618: handle_request: request received (Version = 2) from PID 4626
4618:   GETGRBYGID (500)
4618: Haven't found "500" in group cache!
4618: add new entry "500" of type GETGRBYGID for group to cache (first)
4618: remove GETGRBYGID entry "500"

I have been told that pam_ccreds+nscd are appropriate tools for allowing laptops like mine to operate away from the network.