Renowned as the creator of the acclaimed Petri IT Knowledgebase back in 1999 Daniel Petri has become a distinguished figure in the IT realm, recognized for delivering reliable, expertise-driven content. This website - www.petri.com - not only embodies Daniel's extensive technical skills but also stands as a symbol of his dedication to sharing knowledge and guiding professionals through the dynamic world of information technology.
Over the past 25 years, Daniel Petri's career is characterized by his unwavering commitment to quality IT training, provision of diverse solution architectures, and maintaining a customer-first approach that ensures high levels of satisfaction. Daniel's client-centric mindset has always been a cornerstone of his career, delivering concrete results that spur his clients' growth and success. Daniel's strong technical writing skills are evidenced by the thousands of technical documents, help guides, manuals, and articles he has penned, all drawing from his broad IT and security-oriented background.
Daniel is currently Senior Training Manager at Semperis.

Last Update: Dec 03, 2024
How do I block incoming Internet mail to specific users or groups in Exchange 2003? This tip might come in handy when you want to effectively block all incoming Internet mail traffic for a specific user or a specific group. Note: The original tip was submitted by Ade Famoti on the excellent You Had Me…

Last Update: Dec 03, 2024
Before you begin messing with your system The registry is no child’s play Modifying the registry can cause serious problems that may require you to reinstall your operating system. I cannot guarantee that problems resulting from modifications to the registry can be solved nor do I provide technical support for such issues if they occur….

ADSI is a set of COM objects that are used to programmatically manipulate a namespace. A namespace could be anything from the Active Directory to an application such as MS Exchange Server. Since ADSI is based on COM, it may be scripted using any language with COM bindings (any language that supports accessing the COM…

Last Update: Sep 24, 2024
Those of you who’ve already installed Windows Vista on their own (read my “Install Windows Vista” article) must have noticed that the installation process prompts you to create a user account when it runs. Note: See this article to enable the administrator’s account in Windows 7 This account is an administrator account (and a member…

Last Update: Dec 03, 2024
This document describes how you can configure an Alcatel SpeedTouch Pro ADSL modem not to use NAT anymore, and not to perform the dialing to the ISP. Note that you’ll need a software login method to achieve a connection to ADSL. Alternatively, there are many relatively cheap and/or better Routers on the market which perform…

Last Update: Jul 29, 2025
How can I easily control what applications will run when my computer starts? If you want to edit the startup locations manually, just look at the following REGISTRY keys: HKU.DEFAULTSoftwareMicrosoftWindowsCurrentVersionRun HKU.DEFAULTSoftwareMicrosoftWindowsCurrentVersionRunOnce HKLMSoftwareMicrosoftWindowsCurrentVersionRun HKLMSoftwareMicrosoftWindowsCurrentVersionRunOnce HKLMSoftwareMicrosoftWindowsCurrentVersionRunOnceEx HKCUSoftwareMicrosoftWindowsCurrentVersionRun HKCUSoftwareMicrosoftWindowsCurrentVersionRunOnce You should also look in the startup folders for all users and the current version. If you’re using Windows…

Last Update: Sep 24, 2024
Configure Auto-Windows Update Can I configure my network servers and workstations to auto-update themselves with a pre-defined schedule? Yes you can. SP3 for W2K and SP1 for XP provide that feature. Windows Server 2003 comes out-of-the-box with this feature. Method #1: Manually You can always manually configure any SP1 (for XP) or SP3 (for W2K)…

If you want your DNS server to be integrated into a larger DNS environment such as the Internet, you will need to configure forwarding on your server. To configure DNS forwarding: Click Start, point to Programs, point to Administrative Tools, and then click DNS to start the DNS Management Console. Right click the DNS Server…

Last Update: Jun 29, 2025
How do I configure my Exchange 2000/2003 server to accept e-mails for domains other than my own?Exchange 2000/2003 will only accept e-mail traffic for the e-mail domain that is identical to the name of your Active Directory domain. However sometimes we would like to allow our Exchange server to also receive e-mail for domains other…

Last Update: Dec 03, 2024
How can I configure an IIS computer to be a Smart Host for my Exchange Server? It may be necessary to configure a Windows 2000 server to relay or act as a smart host for security reasons, such as in a perimeter network scenario (also known as DMZ, demilitarized zone, and screened subnet) when you…

Last Update: Nov 19, 2024
Microsoft Exchange Intelligent Message Filter is a product developed by Microsoft to help companies reduce the amount of unsolicited commercial e-mail (UCE), or spam, received by users. You can read more about IMF on the page. How it works? When an external user sends e-mail messages to an Exchange server with Intelligent Message Filter enabled,…

Last Update: Jul 09, 2025
How to install and configure Instant Messaging on Exchange 2000? Step #1: Installing the IM service If you didn’t do so already, you must first install the IM service on the E2K server. Do so by running the E2K setup. When you get to the “Component Selection” page make sure you see a “V” on…