Jan De Clercq

Jan
De Clercq

Jan De Clercq is a member of HP’s Technology Consulting IT Assurance Portfolio team. He focuses on cloud security, identity and access management, architecture for Microsoft-rooted IT infrastructures, and the security of Microsoft products. He's the author of Windows Server 2003 Security Infrastructures (Digital Press) and coauthor of Microsoft Windows Security Fundamentals (Digital Press) and Cloud Computing Protected: Security Assessment Handbook (Recursive Press).

Articles
Windows Gatekeeper Q&As
Understanding and Enabling the Restricted Admin Mode for RDP
Restricted Admin mode for RDP allows administrators to connect to remote computers using RDP, without having their credentials stored on those computers.
Windows Gatekeeper Q&As
Resetting the Password of the KRBTGT Active Directory Account 1
When a domain controller is compromised, you should reset the password of the KRBTGT Active Directory account. Here's how to reset it.
Windows Gatekeeper Q&As
Understanding and Enabling Command-Line Auditing
Command-line auditing is a useful extension to the Windows auditing and event system, but it isn't enabled by default. Here's how to enable it.
Windows Gatekeeper Q&As
Blocking Internet Access from Administrators' Windows Machines
By changing the proxy address of a machine's web browser to an invalid proxy address, you can block Internet access.
Windows Gatekeeper Q&As
Forcing the Expiration of Locally Cached Certificate Revocation Lists
You can delete or invalidate locally cached certificate revocation lists (CRLs) so that the public key infrastructure client downloads more recent CRLs.
Windows Gatekeeper Q&As
Use New Security Accounts to Block Logons Through Remote Desktop Services
Two new security accounts introduced in Windows 8.1 and Windows Server 2012 R2 prevent people from using Remote Desktop Services to log on to domain-joined machines.
Windows Gatekeeper Q&As
Discovering the Details About a Domain's Password Policy
Using a command-line tool, authenticated domain users can learn the details about the policy that governs their passwords.
Windows Gatekeeper Q&As
Controlling the PowerShell Execution Policy Settings in a Domain
Using a Group Policy Object, you can centrally control the PowerShell execution policy settings on the Windows machines in a domain.
Windows Gatekeeper Q&As
Getting and Setting the PowerShell Execution Policy on a Local Computer
With some simple Windows PowerShell commands, you can find out the current PowerShell execution policy that's set on a local computer and change it if necessary.
Windows Gatekeeper Q&As
Use Execution Policies to Control What PowerShell Scripts Can Be Run
With PowerShell's four execution policies and five levels of scope, you can control which PowerShell scripts can be run on Windows boxes and who can run those scripts.
Q&A
Capture All Certification Authority Configuration Changes in Windows Event Logs
Different tools can be used to change the Certification Authority configuration. Here's how to make sure the changes are logged, no matter which tool is being used.
Q&A
An Easy Way to Determine the Authentication Methods Used by Websites
The free Kerberos Authentication Tester displays the authentication method used by a website as well as its authorization header.
Q&A
Fault-Tolerance Options for Windows DHCP Servers
DHCP servers support three fault-tolerance options: installing DHCP on a Windows failover cluster, setting up a split-scope DHCP, and setting up DHCP failover.
Q&A
Optimize Windows Event Forwarding
There are several ways to limit the processing and communication strain that event forwarding puts on the Windows source computers and event collectors.
Q&A
Configure Windows Event Collectors with a GPO Setting
You can use a Group Policy Object (GPO) setting to configure event collectors for your Windows clients.
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