Windows Server

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Backup & Restore Windows Server based Print Servers

After having to recover a broken Windows Server based print server yesterday, I decided to write this small article on how to set up print server backups, and describe the simple process of recovering the print server after a crash (or even roll back printer drivers in case a newly installed driver messes up your […]

Fixing ‘Compatibility Mode grayed out’ or ‘Unable to enable Run as administrator’ on Vista / Windows 2008 Server

Ever wondered how you can set Compatibility Mode on executables under Vista / Windows 2008 server when the settings (or even the entire tab) has been disabled ? Or make the application “run as administrator” permanently, and you’ve found that this setting is disabled ? All of the settings in the Compatibility tab can be […]

First look at Exchange 2010 Beta1 High Availability using DAG

Lab config : 1 x Windows 2008 server Standard Edition, 64bit : DC + HUB/CAS Server role : dionysus – 2 x Windows 2008 servers Enterprise Edition, 64bit : Mailbox server roles : exch2010mb1 ( and exch2010mb2 ( 2 Databases will be created (one on each mailbox server, created automatically when the Mailbox role […]

Free tool : Windows 2003/2008 Certificate Authority Certificate List Utility for pending requests and about-to-expire certificates

In one of my earlier posts, I have talked about setting up a Windows 2008 based Certificate Authority/PKI. Once your Windows 2008 CA setup is in place and configured, you can go ahead and starting issuing certificates. But at the same time, you need to put a maintenance/management procedure in place so you can stay […]

Juniper : Netscreen Remote Dial-UP VPN with AD Radius Authentication and route based VPN / tunnel interface

The following procedure explains how to set up a Juniper ScreenOS based firewall to accept Netscreen Remote Client VPN connections and authenticate users using Active Directory (Radius via Windows 2003 IAS or Windows 2008 NPS).  We’ll assume that all traffic to from the client to the networks needs to pass via the client VPN […]

Windows XP L2TP over IPSec dialup client VPN to a Juniper ScreenOS firewall, using Certificates

Before looking at the various configuration steps, we’ll have to take the following assumptions into account : – We don’t want to use the Netscreen Remote client, but we want to use the Windows XP built-in dialup VPN technology that allows us to build PPTP or L2TP/IPSec connections.  Juniper screenOS does not support PPTP (which […]

IPSec VPN between Windows Server 2008 and Juniper ScreenOS

In this blog post, I will show you how to set up a IPSec VPN tunnel between a Windows Server and a Juniper ScreenOS based firewall and route traffic between hosts that are located behind these 2 VPN gateways. The Windows Server will acts as a gateway to build a VPN tunnel towards the Juniper […]

Getting connected to the internet over IPv6 using Juniper/screenos

It started snowing today, so I guessed it would be the perfect timing to write a quick and dirty howto on getting connected to the internet over IPv6, using a Juniper ssg5.  I’ll also discuss the easy steps to configure Windows and Linux clients for IPv6 and access to the internet. Before looking at the […]

WMI ADAP was unable to create the object Win32_PerfRawData_ ASPNET_2050727_ASPNETAppsv2050727

Scenario : OpsMgr SP1 (RC, but problem also exists in the RTM version) on Windows Server 2003 SP2 fully patched, OpsMgr agents deployed to various servers. Soon after deploying the agents, I started getting the following error message on various servers : WMI ADAP was unable to create the object Win32_PerfRawData_ASPNET_2050727_ASPNETAppsv2050727 for Performance Library ASP.NET_2.0.50727 […]

Merging & Syncing multiple Active Directory databases into one ADAM instance

Keywords : ldap authentication multiple domains combine adam adamsync adschemaanalyzer ldap proxy chain ldifde MS-ADAMSyncconf.xml MS-AdamSyncMetadata.ldf MS-ADAMSchemaW2K3.ldf Object Violation Naming Violation Ldap error occured. ldap_add_sW: Object Class Violation. Case definition : 2 AD domains, containing user accounts. One of the domains is a 2003 based domain and has the R2 + Exchange 2003 + Exchange […]

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