[CentOS] CentOS-6 : DNS resolver for ssh chrooted accounts.

Our firm uses a dedicated virtual host to provide ssh tunnels for
remote employee access to various internal services and for http/s
access to the outside world.  For security reasons I would like to
have the remote users forward their dns lookups over the tunnel as
well.  However, we recently chrooted a number of ssh users and these
accounts cannot resolve dns queries passed over the tunnel.

I infer from previous experience that the necessary libraries/binaries
are not installed in the chroot home. I can install whatever is
missing using yum  --installroot=[path/to/chroot/home] but what I
cannot determine is exactly what package(s) is/are required.

What is the minimal package set needed to enable chrooted users to
perform dns lookups on CentOS-6?


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