Account administration in a distributed UNIX/Linux environment can become complicated and messy if done by hand. Large sites use special tools to deal with this problem. In this article, I describe ...

The Kerberos authentication protocol is the default authentication protocol of Windows Server 2003. This section examines how the protocol works by breaking down the complexity of the protocol into ...

Several readers responded to my previous post on pass-the-hash attacks, asking if Kerberos authentication versus LANManager, NTLM, or NTLMv2 was an effective defense. It’s a good question, one that I ...

Authentication sits at the heart of enterprise security, making passwords and the authentication mechanisms that use them, prime targets for cybercriminals. For more than 90% of organizations that use ...