iprop
, ipropd-master
,
ipropd-slave
—
propagate changes to a Heimdal Kerberos master KDC to slave
KDCs
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 |
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.
slaves, slave-stats in the
database directory.