CERT Advisory: Buffer Overflow in Kerberos Administration Daemon
   "Multiple Kerberos distributions contain a remotely exploitable buffer overflow in the Kerberos administration daemon. A remote attacker could exploit this vulnerability to gain root privileges on a vulnerable system."
   http://www.cert.org/advisories/CA-2002-29.html

Cybersafe Ltd
   Provides products for database security, web security, and security infrastructure based on the Kerberos protocol, and also provides Kerberos consulting and support.
   http://www.cybersafe.ltd.uk

GNU Shishi
   Freely available implementation of Kerberos 5. Includes system documentation and downloads.
   http://www.gnu.org/software/shishi/

Heimdal
   An international free implementation. Includes downloads, distribution information and mailing list contacts.
   http://www.pdc.kth.se/heimdal/

How to Kerberize your Site
   Excellent tutorial on implementation. Contains detailed steps to follow for a successful installation, as well as answers to common questions.
   http://www.ornl.gov/~jar/HowToKerb.html

Kerberos FAQ
   Answers to frequently asked questions.
   http://www.cmf.nrl.navy.mil/CCS/people/kenh/kerberos-faq.html

Kerberos Network Authentication Service
   A resource site with documentation, papers and software distributions. Software may be subject to US export control.
   http://gost.isi.edu/info/kerberos/

Kerberos Reference Page
   An index of related resources. Includes software distributions and patches, as well as user documentation.
   http://www.contrib.andrew.cmu.edu/~shadow/kerberos.html

Kerberos: An Authentication Service for Computer Networks
   A technical paper documenting the system and standard. Includes diagrams and references.
   http://gost.isi.edu/publications/kerberos-neuman-tso.html

MIT Kerberos Consortium
   Created to establish Kerberos as a universal authentication platform for the world's computer networks. Includes news and events, details of sponsors and those involved, and membership information.
   http://www.kerberos.org/

Notes on Integrating Windows, RedHat, and HPUX Using Kerberos
   Brief tutorial on configuring *nix systems to authenticate off a Microsoft Active Directory server.
   http://barney.gonzaga.edu/~awithers/integration/

RFC 1510
   An overview and specification of the official internet protocol.
   http://tools.ietf.org/html/rfc1510