We are going install freeIPA on the nuc00 node. We could make the DNS names resolvable by standing a DNS/BIND server to deal with resolution of internal domain names. However, since we only have 12 devices at the current time, we can make hostnames resolvable by just adjusting the hostname and editing the /etc/hosts file.
sudo hostnamectl set-hostname nuc00.projectkoios.com
FreeIPA server performs a lot of cryptographic operations while running and thus your VM must have enough entropy to ensure FreeIPA cryptographic operations doesn’t stall. To achieve high entropy, install and configure rng-tools.
sudo apt-get -y install rng-tools
set the environment variable HRNGDEVICE variable in /etc/default/rng-tools
sudo vi /etc/default/rng-tools
HRNGDEVICE=/dev/urandom