Binary package “nss-updatedb” in ubuntu trusty

Cache name service directories in DB format

 This package contains a script, nss_updatedb, which can be
 used to maintain local caches of user and group directories.
 These can then be used by the DB Name Service Switch module
 (libnss-db) to provide name service when the system is offline.
 .
 These tools are designed to work with libpam-ldap and libnss-ldap.