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  • How to enforce password complexity on Solaris

    Posted May 12, 2012 - 7:44 pm

    Solaris 10 is the first version of Solaris to provide a complex set of variables for controlling password strength. The /etc/default/passwd file contains a series of parameters -- most commented out when a system is first installed -- that allow you to exercise some fairly rigorous constraints on the passwords your users may select.
  • What makes a good password?

    Posted April 29, 2012 - 5:02 pm

    Sound advice against the use of bad passwords has been around for decades. Yet I still find people electing to use passwords like pa55w0rd and login123 as if they'd never heard about password cracking programs. Even technical professionals -- programmers, help desk techs and systems administrators -- sometimes assign really weak passwords to their own and other important accounts. It's become painfully obvious to me that telling people to use good passwords isn't enough. We need to clearly define what a good password is -- and never imply that short or predictable passwords are ever OK.
  • Unix: Impossible File Types

    Posted July 1, 2009 - 3:27 pm

    In spite of its long history as one of the tried and true Unix commands, even the tar command can offer some surprises. My first encounter with "impossible file type" errors took place earlier today.

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