Installing, Configuring and Administering the Kerberos Server V 2.0 on HP-UX 11i

Propagation
kpropd.ini
Chapter 7222
As the krb.conf file cannot describe a propagation hierarchy where
secondary servers themselves have secondary servers, you must edit the
kpropd.ini file to support such relationships.
[default_values]
interval=15s
key_exp=6h
max_cache=1024K
max_retry_delay=1h
net_timeout=30s
port=kerberos-adm
primary_realm=REALM1
realms=all
service_name=host
[sersrv1]
child = secsrv2
[secsrv2]
child1 = secsrv3
child = secsrv4
parent = secsrv1
[secsrv3]
parent = secsrv2, realms = REALM1
[secsrv4]
parent = secsrv2, realms = REALM2