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Robbie Allen

Robbie Allen is a technical leader at Cisco Systems and a Windows Server Directory Services MVP. He is the author of Active Directory Cookbook (O’Reilly & Associates).

Email: rallen@rallenhome.com

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Author Articles

5 Steps to a Secured Active Directory

By Robbie Allen, 03/29/2005

These 5 steps can significantly help secure your overall AD infrastructure. Even better, they don’t cost much to implement.

Design Dictates Security

By Robbie Allen, 03/29/2005

The simpler you can make your AD design, the better off you'll be, especially when it comes to security.

5 Must-Have AD Tools

By Robbie Allen, 09/28/2004

Five command-line tools—AdFind, AdMod, OldCmp, Dsrevoke, and AdRestore—can help you efficiently manage your AD environment.

Windows Server 2003 AD Quotas

By Robbie Allen, 03/23/2004

Windows 2003 has a new AD quotas feature that lets you limit the number of objects a user can create.

WKGUID Binding

By Robbie Allen, 03/15/2004

Learn how to use WKGUID binding and how to change the default WKBIND containers in Windows 2003.

AD Tombstone Objects

By Robbie Allen, 02/17/2004

Windows 2003 lets you restore deleted objects in AD. Find out the basics of AD's tombstoning process and how to bring deleted objects back from the dead.

Searching for Tombstones

By Robbie Allen, 02/17/2004

Find out how to search for deleted objects in Windows 2003 AD.

Enumerating Nested Group Membership

By Robbie Allen, 02/12/2004

Nested groups give you flexibility but also add complexity. A simple script takes the legwork out of drilling down through nested-group membership.

Using LDIF Files to Extend the AD Schema

By Robbie Allen, 01/12/2004

You can use the Perl Net::LDAP modules not only to import LDIF files in the AD schema but also to verify schema extensions and reduce the potential for errors during the import.

Using LDAP Controls with Net::LDAP

By Robbie Allen, 03/10/2003

LDAP controls add functionality beyond the standard LDAP operations.

Querying and Updating AD, Part 2

By Robbie Allen, 02/11/2003

Using the Net::LDAP methods, you can add, delete, modify, rename, and move objects in AD.

Querying and Updating AD, Part 1

By Robbie Allen, 01/09/2003

With the Net::LDAP Perl modules, you can write LDAP-enabled scripts to query and update AD from both Windows and non-Windows platforms.

Your Mission: Delete from the AD Schema

By Robbie Allen, 11/25/2002

You've probably been led to believe that deleting classes and attributes from the AD schema is impossible. This article dispels the myth by showing you how to enable schema ...

Query and Update DNS

By Robbie Allen, 10/08/2002

If you understand the structure of DNS and the basics of how to use the Perl Net::DNS modules, you can write scripts that find all the DCs in a site or domain, find all the GC ...



White Papers

Get your Windows 7 deployment off to the right start by implementing PC lockdown. A locked-down environment is easier and cheaper to support since users are less likely to make unnecessary changes to the core system configuration - read more here!

Essential Guides

Is your iSCSI "lossy"? The reality is that most off-the-shelf Ethernet hardware deployed for iSCSI can lose packets, resulting in slow performance or application downtime. Learn how to assess your current iSCSI infrastructure and engineer an advanced iSCSI SAN infrastructure.

Web Seminars

What's the best way to keep your network safe from malware? In this web seminar, security expert Greg Shields suggests an alternative method to the traditional blacklisting approach that is common with anti-virus and anti-malware solutions.

eLearning Series

We bring the experts direct to you to share their real-world perspective and expertise. During each event, three sessions stream in real time, so you can learn, ask questions, and get solutions.
Upcoming event: Getting the Most with Exchange 2010 with Paul Robichaux

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