• Password Policy: Minimum Password Age

    by  • July 31, 2009 • Configuring Vista Security

    Minimum Password Age determines the period of time (in days) that a password must be used before the user can change it. You can set a value between 1 and 998 days, or you can allow changes immediately by setting the number of days to 0.

    The Minimum Password Age setting must be lower than the Maximum Password Age, unless the Maximum Password Age is set to 0 (zero), or never expire. If the Maximum Password Age is set to 0, the Minimum Password Age can be set to any value between 0 and 998.

    Minimum Password Age is useful in conjunction with Enforce Password History to prevent users from simply entering new passwords repeatedly to bypass Enforce Password History and reuse their current password.

    Defaults:

    • 1 on domain controllers.
    • 0 on stand-alone servers.

    Note: By default, PC’s on a network domain follow the configuration of their domain controllers.

    About

    Tony has driven security policies and technologies for antivirus and incident response for Fortune 500 companies, and he has been network administrator and technical support for smaller companies. He has written for a variety of other Web sites and publications, including BizTech Magazine, PC World, SearchSecurity.com, WindowsNetworking.com, Smart Computing magazine, and Information Security magazine. Tony is a CISSP (Certified Information Systems Security Professional) and ISSAP (Information Systems Security Architecture Professional). He is Microsoft Certified as an MCSE (Microsoft Certified Systems Engineer) and MCSA (Microsoft Certified Systems Administrator) in Windows 2000 and an MCP (Microsoft Certified Professional) in Windows NT. Tony has been recognized by Microsoft as an MVP (Most Valuable Professional) in Windows security since 2006. In addition to his Web site and magazine contributions, Tony was also tech editor of PCI Compliance (ISBN: 1597491659 ) and author of Essential Computer Security: Everyone’s Guide to E-mail, Internet, and Wireless Security (ISBN: 1597491144), coauthor of Hacker’s Challenge 3 (ISBN: 0072263040) and a contributing author to Winternals: Defragmentation, Recovery, and Administration Field Guide (ISBN: 1597490792), Combating Spyware in the Enterprise (ISBN: 1597490644) Syngress Force 2006 Emerging Threat Analysis: From Mischief to Malicious (ISBN: 1597490563), Botnets: The Killer Web Applications (ISBN: 1597491357), and AVIEN Malware Defense Guide for the Enterprise (ISBN: 1597491640).

    http://www.tonybradley.com