Alexander Bokovoy
3e54c43624
KDC configuration in /var/kerberos/krb5kdc/kdc.conf is generated from the template in install/share/kdc.conf.template. Master key encryption type specified there is used to bootstrap the master key in LDAP database. Once it is done, actual deployment does not rely on the master_key_type value anymore. The actual master key(s) get loaded from LDAP database where they stored in a BER-encoded format, preserving all parameters, including encryption type. This means we can safely migrate to AES256-SHA2 as the default master key encryption type for new installations. Replicas will get their master key encryption type details from the server they were provisioned from. MIT Kerberos supports AES256-SHA2 since 1.15 (2015), meaning RHEL 7.4 is the earliest supported version as it provides krb5 1.15.1. Current supported RHEL 7 version is RHEL 7.9. Since RHEL 6 already cannot be used as a replica to IPA 4.5+ due to a domain level 1 upgrade, this change does not affect old releases. Migration from the previously deployed master key encryption type is described by MIT Kerberos upstream in http://web.mit.edu/kerberos/krb5-latest/doc/admin/advanced/retiring-des.html#the-database-master-key One would need to use '-x ipa-setup-override-restrictions' to allow the `kdb5_util` utility to modify the data over IPA KDB driver. Fixes: https://pagure.io/freeipa/issue/9119 Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com> Reviewed-By: Francisco Trivino <ftrivino@redhat.com>
FreeIPA Server
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 management 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
- KDC - based on MIT Kerberos implementation
- PKI based on Dogtag project
- Samba libraries for Active Directory integration
- DNS Server based on BIND and the Bind-DynDB-LDAP plugin
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
For developers
- Building FreeIPA from source
- http://www.freeipa.org/page/Build
- See the BUILD.txt file in the source root directory
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://pagure.io/freeipa/issues
- If you want to participate in actively developing IPA please subscribe to the freeipa-devel mailing list at https://lists.fedoraproject.org/archives/list/freeipa-devel@lists.fedorahosted.org/ or join us in IRC at irc://irc.libera.chat/freeipa