man krb5_newrealm (Administration système) - Create a new Kerberos Realm
NAME
krb5_newrealm - Create a new Kerberos Realm
SYNOPSIS
krb5_newrealm
Description
This script attempts to create a Kerberos realm. It assumes that none of the realm components exists, except for the /etc/krb5.conf file. (Normally this file is automatically generated at package installation, but if you skipped the configuration step, you will need to manually generate this file before running krb5_newrealm.) It creates the database and populates /etc/krb5kdc/kadm5.keytab which contains keys necessary for kadmind to run.