domain_name kerberos_realm_name
Each line of the translation file is in one of the following forms:
host_name kerberos_realm domain_name kerberos_realmIf an entry lists a domain_name, it must begin with a dot (for example, .sco.COM).
If a hostname exactly matches the host_name field in a line of the first form, the corresponding realm is the realm of the host.
If a hostname does not match any host_name in the file, but its domain exactly matches the domain_name field in a line of the second form, the corresponding realm is the realm of the host.
.sco.COM kerberos.sco.com