Petr Viktorin
4f89decc9a
The UPG Definition is always present in IPA; if it can not be read it's usually caused by insufficient privileges. Previously the code assumed the absence of the entry meant that UPG is disabled. With granular read permissions, this would mean that users that can add users but can't read UPG Definition would add users without UPG, and the reason for that would not be very clear. It is better to fail early if the definition can't be read. Raise an error if the UPG Definition is not available. This makes read access to it a prerequisite for adding users. Part of the work for: https://fedorahosted.org/freeipa/ticket/3566 Reviewed-By: Martin Kosek <mkosek@redhat.com>
IPA Server
Overview
--------
FreeIPA allows Linux administrators to centrally manage identity,
authentication and access control aspects of Linux and UNIX systems
by providing simple to install and use command line and web based
managment tools.
FreeIPA is built on top of well known Open Source components and standard
protocols with a very strong focus on ease of management and automation
of installation and configuration tasks.
FreeIPA can seamlessly integrate into an Active Directory environment via
cross-realm Kerberos trust or user synchronization.
Benefits
--------
FreeIPA:
* Allows all your users to access all the machines with the same credentials
and security settings
* Allows users to access personal files transparently from any machine in
an authenticated and secure way
* Uses an advanced grouping mechanism to restrict network access to services
and files only to specific users
* Allows central management of security mechanisms like passwords,
SSH Public Keys, SUDO rules, Keytabs, Access Control Rules
* Enables delegation of selected administrative tasks to other power users
* Integrates into Active Directory environments
Components
----------
The FreeIPA project provides unified installation and management
tools for the following components:
* LDAP Server - based on the 389 project (LDAP)
http://directory.fedoraproject.org/wiki/Main_Page
* KDC - based on MIT Kerberos implementation
http://k5wiki.kerberos.org/wiki/Main_Page
* PKI based on Dogtag project
http://pki.fedoraproject.org/wiki/PKI_Main_Page
* Samba libraries for Active Directory integration
http://www.samba.org/
* DNS Server based on BIND and the Bind-DynDB-LDAP plugin
https://www.isc.org/software/bind
https://fedorahosted.org/bind-dyndb-ldap
Project Website
---------------
Releases, announcements and other information can be found on the IPA
server project page at <http://www.freeipa.org/>.
Documentation
-------------
The most up-to-date documentation can be found at
<http://freeipa.org/page/Documentation>.
Quick Start
-----------
To get started quickly, start here:
<http://www.freeipa.org/page/Quick_Start_Guide>
Licensing
---------
Please see the file called COPYING.
Contacts
--------
* If you want to be informed about new code releases, bug fixes,
security fixes, general news and information about the IPA server
subscribe to the freeipa-announce mailing list at
<https://www.redhat.com/mailman/listinfo/freeipa-interest/>.
* If you have a bug report please submit it at:
<https://bugzilla.redhat.com>
* If you want to participate in actively developing IPA please
subscribe to the freeipa-devel mailing list at
<https://www.redhat.com/mailman/listinfo/freeipa-devel/> or join
us in IRC at irc://irc.freenode.net/freeipa