# Kerberos - Realm

A realm is an administrative domain. Kerberos realms are usually written in uppercase and usually consist of the Internet domain name (for example, MYDOM.COM).

## Configuration

The realm must be listed in the local Kerberos configuration file

## Default

From the krb5 configuration, the default realm is:

• the attribute default_realm in the libdefaults section
• of is derived from the domain_realm section where you map the realm to ?