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).
