KerbyServer

With openvpn already installed via yum:

su -
cp -a /usr/share/openvpn/easy-rsa /etc/openvpn/
cd /etc/openvpn/easy-rsa/2.0
vim vars

Edit the following:
export KEY_COUNTRY="US"
export KEY_PROVINCE="VA"
export KEY_CITY="Chesapeake"
export KEY_ORG="KerbyServer"
export KEY_EMAIL="admin@kerbyserver.net"

Save the file, and more commands:

./vars
source vars
./clean-all
./build-ca
./build-key-server server

Go with all the default entries.

./build-key kerbspb

Again, go with the defaults.

./build-dh