Install nsscache on CentOS 6

1. Download the latest rpmforge-release rpm from http://apt.sw.be/redhat/el6/en/i386/rpmforge/RPMS/
2. Install rpmforge-release rpm:

• rpm -Uvh rpmforge-release*rpm
  

3. Install nsscache rpm package:

   • yum install nsscache
     

4. edit /etc/nsscache.conf to set up which system databases you wish to synchronise, and to set local configuration parameters.
5. run following command to perform a full update

   • nsscache update --full
     

6. run following command to confirm that the system is configured:

   • nsscache verify
     

7. edit /etc/nsswitch.conf to point your local database to use the cache nss module, or the db module.

   • passwd:     files ldap [NOTFOUND=return] db
     shadow:     files ldap [NOTFOUND=return] db
     group:      files ldap [NOTFOUND=return] db
     

8. Run

   getent passwd 
   

   to test if the entries are pulled from the server

See also nsscache official web site