NAME¶
iprop,
ipropd-master,
ipropd-slave —
propagate changes to a
Heimdal Kerberos master KDC to slave KDCs
SYNOPSIS¶
ipropd-master |
[-c string |
--config-file=string]
[-r string |
--realm=string]
[-k kspec |
--keytab=kspec]
[-d file |
--database=file]
[--slave-stats-file=file]
[--time-missing=time]
[--time-gone=time]
[--detach]
[--version]
[--help] |
ipropd-slave |
[-c string |
--config-file=string]
[-r string |
--realm=string]
[-k kspec |
--keytab=kspec]
[--time-lost=time]
[--detach]
[--version]
[--help]
master |
DESCRIPTION¶
ipropd-master is used to propagate changes to a Heimdal
Kerberos database from the master Kerberos server on which it runs to slave
Kerberos servers running
ipropd-slave.
The slaves are specified by the contents of the
slaves file in
the KDC's database directory, e.g.
/var/heimdal/slaves. This
has principals one per-line of the form
iprop/slave@REALM
where
slave is the hostname of the slave server in the
given
REALM, e.g.
iprop/kerberos-1.example.com@EXAMPLE.COM
On a slave, the argument
master specifies the hostname of
the master server from which to receive updates.
In contrast to
hprop(8), which sends the whole database to the
slaves regularly,
iprop normally sends only the changes as
they happen on the master. The master keeps track of all the changes by
assigning a version number to every change to the database. The slaves know
which was the latest version they saw, and in this way it can be determined if
they are in sync or not. A log of all the changes is kept on the master. When
a slave is at an older version than the oldest one in the log, the whole
database has to be sent.
The changes are propagated over a secure channel (on port 2121 by default). This
should normally be defined as “iprop/tcp” in
/etc/services or another source of the services database.
The master and slaves must each have access to a keytab with keys for the
iprop service principal on the local host.
There is a keep-alive feature logged in the master's
slave-stats file (e.g.
/var/heimdal/slave-stats).
Supported options for
ipropd-master:
- -c
string,
--config-file=string
-
- -r
string,
--realm=string
-
- -k
kspec,
--keytab=kspec
- keytab to get authentication from
- -d
file,
--database=file
- Database (default per KDC)
- --slave-stats-file=file
- file for slave status information
- --time-missing=time
- time before slave is polled for presence (default 2
min)
- --time-gone=time
- time of inactivity after which a slave is considered gone
(default 5 min)
- --detach
- detach from console
- --version
-
- --help
-
Supported options for
ipropd-slave:
- -c
string,
--config-file=string
-
- -r
string,
--realm=string
-
- -k
kspec,
--keytab=kspec
- keytab to get authentication from
- --time-lost=time
- time before server is considered lost (default 5 min)
- --detach
- detach from console
- --version
-
- --help
-
Time arguments for the relevant options above may be specified in forms like 5
min, 300 s, or simply a number of seconds.
FILES¶
slaves,
slave-stats in the database
directory.
SEE ALSO¶
krb5.conf(5),
hprop(8),
hpropd(8),
iprop-log(8),
kdc(8).