The following commands are run on our KDC server

#yum install krb5-server krb5-workstation

Once these packages have been installed the /etc/krb5.conf file needs to be modified. By default a few things are commented out that need to be configured. Below is a copy of the default configuration.

Create a Kerberos Database
#kdb5_util create –s
Service Management

#systemctl enable kadmin krb5kdc
#systemctl start kadmin krb5kdc

Firewall Configuration

#firewall-cmd --permanent --add-service=Kerberos
#firewall-cmd –reload

Kerberos Administration
#kadmin.local
Setup The Client
use the GUI, first install the authconfig-gtk package.
#yum install authconfig-gtk