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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