Alexander Bokovoy
1d2897e3d7
When authentication indicators were introduced in 2016, ipa-pwd-extop plugin gained ability to reject LDAP BIND when an LDAP client insists the authentication must use an OTP token. This is used by ipa-otpd to ensure Kerberos authentication using OTP method is done with at least two factors (the token and the password). This enfrocement is only possible when an LDAP client sends the LDAP control. There are cases when LDAP clients cannot be configured to send a custom LDAP control during BIND operation. For these clients an LDAP BIND against an account that only has password and no valid token would succeed even if admins intend it to fail. Ability to do LDAP BIND without a token was added to allow users to add their own OTP tokens securely. If administrators require full enforcement over LDAP BIND, it is cannot be achieved with LDAP without sending the LDAP control to do so. Add IPA configuration string, EnforceLDAPOTP, to allow administrators to prevent LDAP BIND with a password only if user is required to have OTP tokens. With this configuration enabled, it will be not possible for users to add OTP token if one is missing, thus ensuring no user can authenticate without OTP and admins will have to add initial OTP tokens to users explicitly. Fixes: https://pagure.io/freeipa/issue/5169 Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com> Reviewed-By: Florence Blanc-Renaud <flo@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