OTP

Integrating Yubikey Token details within LDAP with FreeIPA and Red Hat Enterprise Linux 6

I am really very pleased to be writing this article as I’ve been wanting to see this functionality ever since I first started getting into FreeIPA and using Yubikeys.

If you are are Yubikey user/admin, chances are you are a little, if not very, frustrated that there is no simple way to centrally manage your users and key tokens.

The way most One Time Password(OTP) solutions work is based on a central server which maps a token to a user. Yubico however, use a local text file on each individual system, which map a username to a specific key token. This is a very clunky method, especially if you are managing very large numbers of servers.

Well, with a bit of work, and with huge thanks to Michal Ludvig, we now have a way of integrating Yubikey’s directly into an LDAP based directory server.

I came across his article on a Google+ post detailing how he has provided a way for this to become reality. I am still unbelievably impressed.
You can read his original article here. http://www.logix.cz/michal/devel/yubikey-ldap/

 

I have absolutely no intention of trying to steal any thunder away from what Michal has done here. It is truly fantastic.
In this article, I am simply providing a very quick and easy way of storing Yubikey token ID’s inside of FreeIPA 3.0 on Red Hat Enterprise Linux 6.4 (Beta)

I would also like to thank Gavin Spurgeon for his help in clarifying the inner workings of how the integration happens, specifically with FreeIPA as it was not as straight forward as I anticipated.

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Adding Yubikey 2 factor authentication to your Red Hat Enterprise Linux estate

A few weeks ago I covered how to integrate the YubiRadius Virtual Appliance into FreeIPA which you can find here, or Microsoft Active Directory which you can find here.

This article is a really quick walk though on how to take your authentication one step further, and add 2 factor authentication into the same process for your Red Hat Enterprise Linux server estate.

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YubiRadius integration with group-validated FreeIPA Users using LDAPS

This article will show you how to set up the YubiRadius Virtual Appliance (v. 3.5.1) for User validation against a FreeIPA infrastructure on Red Hat Enterprise Linux 6.3.

You can obtain the YubiRadius Virtual Appliance from the good people over at Yubico, or just click here

This guide is not meant to show you how to configure a virtual appliance in your choice of Virtualization technology, although as I am using KVM, a special thanks to Gavin Spurgeon for getting this VA converted and working smoothly (even with virtio for the icing on the cake).

For details in configuring the Virtual Appliance you can reference the Yubico’s provided documentation here if you wish.

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