HPROP(8) MidnightBSD System Manager’s Manual HPROP(8)


hprop — propagate the KDC database


hprop [

−m file |
file ] [
file |
file ] [−-source=heimdal|mit-dump|krb4-dump|krb4-db|kaserver] [
string |
string ] [
cell |
cell ] [−S −-kaspecials] [
keytab |
keytab ] [
string |
string ] [−D −-decrypt] [−E −-encrypt] [−n −-stdout] [−v −-verbose] [−-version] [−h −-help] [host[:port]] ...


hprop takes a principal database in a specified format and converts it into a stream of Heimdal database records. This stream can either be written to standard out, or (more commonly) be propagated to a hpropd(8) server running on a different machine.

If propagating, it connects to all hosts specified on the command by opening a TCP connection to port 754 (service hprop) and sends the database in encrypted form.

Supported options:

−m file, −-master-key=file

Where to find the master key to encrypt or decrypt keys with.

−d file, −-database=file

The database to be propagated.


Specifies the type of the source database. Alternatives include:


a Heimdal database


a MIT Kerberos 5 dump file


a Kerberos 4 database


a Kerberos 4 dump file


an AFS kaserver database

−k keytab, −-keytab=keytab

The keytab to use for fetching the key to be used for authenticating to the propagation daemon(s). The key kadmin/hprop is used from this keytab. The default is to fetch the key from the KDC database.

−R string, −-v5-realm=string

Local realm override.

−D, −-decrypt

The encryption keys in the database can either be in clear, or encrypted with a master key. This option transmits the database with unencrypted keys.

−E, −-encrypt

This option transmits the database with encrypted keys.

−n, −-stdout

Dump the database on stdout, in a format that can be fed to hpropd.

The following options are only valid if hprop is compiled with support for Kerberos 4 (kaserver).

−r string, −-v4-realm=string

v4 realm to use.

−c cell, −-cell=cell

The AFS cell name, used if reading a kaserver database.

−S, −-kaspecials

Also dump the principals marked as special in the kaserver database.

−4, −-v4-db

Deprecated, identical to ‘--source=krb4-db’.

−K, −-ka-db

Deprecated, identical to ‘--source=kaserver’.


The following will propagate a database to another machine (which should run hpropd(8):)

$ hprop slave-1 slave-2

Copy a Kerberos 4 database to a Kerberos 5 slave:

$ hprop --source=krb4-db -E krb5-slave

Convert a Kerberos 4 dump-file for use with a Heimdal KDC:

$ hprop -n --source=krb4-dump -d /var/kerberos/principal.dump --master-key=/.k | hpropd -n