KPROPD(8) Maintenance Procedures KPROPD(8)


kpropd - Kerberos propagation daemon for slave KDCs


/usr/lib/krb5/kpropd [-d] [-f temp_dbfile] [-F dbfile]
[-p kdb_util] [-P port_number] [-r realm]
[-s srv_tabfile] [-S] [-a acl_file]


The kpropd command runs on the slave KDC server. It listens for update
requests made by kprop(8) from the master KDC and periodically requests
incremental updates from the master KDC.

When the slave receives a kprop request from the master, kpropd copies
principal data to a temporary text file. Next, kpropd invokes
kdb5_util(8) (unless a different database utility is selected) to load
the text file in database format.

When the slave periodically requests incremental updates, kpropd update
its principal.ulog file with any updates from the master. kproplog(8)
can be used to view a summary of the update entry log on the slave KDC.

kpropd is not configured for incremental database propagation by default.
These settings can be changed in the kdc.conf(5) file:

sunw_dbprop_enable = [true | false]

Enables or disables incremental database propagation. Default is

sunw_dbprop_slave_poll = N[s, m, h]

Specifies how often the slave KDC polls for any updates that the
master might have. Default is 2m (two minutes).

The kiprop/<hostname>@<REALM> principal must exist in the slave's keytab
file to enable the master to authenticate incremental propagation
requests from the slave. In this syntax, <hostname> is the slave KDC's
host name and <REALM> is the realm in which the slave KDC resides.


The following options are supported:

Enable debug mode. Default is debug mode disabled.

-f temp_dbfile
The location of the slave's temporary principal
database file. Default is /var/krb5/from_master.

-F dbfile
The location of the slave's principal database file.
Default is /var/krb5/principal.

-p kdb_util
The location of the Kerberos database utility used for
loading principal databases. Default is

-P port_number
Specifies the port number on which kpropd will listen.
Default is 754 (service name: krb5_prop).

-r realm
Specifies from which Kerberos realm kpropd will receive
information. Default is specified in

-s srv_tabfile
The location of the service table file used to
authenticate the kpropd daemon.

Run the daemon in standalone mode, instead of having
inetd listen for requests. Default is non-standalone

-a acl_file
The location of the kpropd's access control list to
verify if this server can run the kpropd daemon. The
file contains a list of principal name(s) that will be
receiving updates. Default is /etc/krb5/kpropd.acl.


Kerberos principal database.

The update log file.

KDC configuration information.

List of principals of all the KDCs; resides
on each slave KDC.

Temporary file used by kpropd before loading
this to the principal database.


See attributes(7) for descriptions of the following attributes:

|Interface Stability | Evolving |


kdc.conf(5), krb5.conf(5), attributes(7), kerberos(7), kdb5_util(8),
kprop(8), kproplog(8)


The kprop service is managed by the service management facility, smf(7),
under the service identifier:


Administrative actions on this service, such as enabling, disabling, or
requesting restart, can be performed using svcadm(8). Responsibility for
initiating and restarting this service is delegated to inetd(8). Use
inetadm(8) to make configuration changes and to view configuration
information for this service. The service's status can be queried using
the svcs(1) command.

July 11, 2005 KPROPD(8)