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: 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)…

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: 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: Dec 03, 2024
This document describes how you can configure an Alcatel SpeedTouch 510 ADSL modem not to use NAT anymore. This process is often called DHCP SPOOFING. The public IP will be sent to your machine by DHCP therefore eliminating NAT. It is also for setups where combination of an Ethernet gateway routers which do not have…

Last Update: Sep 17, 2024
How do I configure Active Directory Connector Connection Agreements (CA)? MSKB 296260 has the following information: In most ADC deployments, your configuration falls under one of the following scenarios; before you configure Connection Agreements (CA), determine which scenario applies to your situation: First scenario. The Exchange Server 5.5 mailboxes are associated with accounts in a…

Last Update: Sep 24, 2024
To configure a PPPoE dialer in Windows XP do the following: Open Network Connections from the control Panel and click Create a New Connection. In the Welcome to the new connection wizard click Next. In the Network Connection Type window select Connect to the Internet. Click Next. In the Getting ready windows select Set up…

How can I configure a Windows 2000/2003 Server as a Global Catalog? The Global Catalog (GC) contains an entry for every object in an enterprise forest but only a few properties for each object. An entire forest shares a GC, with multiple servers holding copies. You can perform an enterprise wide forest search only on…

Last Update: Dec 03, 2024
As noted in previous articles, Windows Server 2008 has an interesting option to install it with a minimal graphical user interface (or GUI for short). This method of installation is called “Server Core”, and it allows an administrator to only install the minimum binaries required to run a specific server role (currently, there are 9…

Last Update: Dec 03, 2024
Can I encrypt compressed files or folders? Can I compress encrypted files or folders? No. NTFS file compression and file encryption are mutually exclusive because of the way NTFS compression is performed. You can use only one of these options at a time on a file. If the file is compressed and you try to…

Last Update: Nov 19, 2024
Greylisting is quickly emerging as the new weapon that can be effectively used to fight against spam. Greylisting is somewhat related to whitelisting and blacklisting, but instead of specifying who is on your white or black lists, Greylisting works in a different way. Each time a mailbox receives an e-mail from an unknown contact, that…

Last Update: Nov 19, 2024
Perhaps no problem plagues the Internet as deeply as that of unsolicited junk E-mail, or SPAM. While there’s no doubt that SPAM can be annoying to the end users, SPAM can cause problems for both the network administrators and for those who own or manage a company. The reason for this is that SPAM robs…

Last Update: Sep 24, 2024
In Windows 2000/XP/2003, how can I close many applications at-once? When you’re done working on your computer for the day, you probably close each open application one-by-one. If so, chances are that you’ve wished that you could close all you open applications at the same time. To do so, hold down the [Ctrl] key and…