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Daniel Petri

Petri Contributor

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.

LATEST

How to use Eventtriggers.exe to send e-mail based on Event IDs

Last Update: Nov 19, 2024

One of an administrator‘s main chores is the tedious task of having to go through server event logs and monitor them for any error, warning, or abnormal event. Naturally, many management and monitoring tools such as Microsoft MOM or System Center Operation Manager 2007 do just that – monitor these events for you. However, in…

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How does EFS Work?

Last Update: Dec 03, 2024

How does EFS work? EFS uses an encryption attribute to designate files for EFS protection. When a file’s encryption attribute is on, EFS stores the file as encrypted cipher text. When an authorized user opens an encrypted file in an application, EFS decrypts the file in the background and provides a plaintext copy to the…

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How to Ask a Question?

Last Update: Dec 03, 2024

How to ask a question? (or – How do I ask a question on a professional forum/newsgroup without getting flamed?) How many times did you post a question on a technical newsgroup or forum, waited quite a lot of time for an answer, and the only thing you got was either a long silence, or…

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How to Install Active Directory on Windows 2000

Last Update: Nov 19, 2024

How do I install Active Directory on my Windows 2000 Server? First make sure you read and understand Active Directory Installation Requirements. If you don’t comply with all the requirements of that article you will not be able to set up your AD (for example: you don’t have a NIC or you’re using a computer…

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How to Install Active Directory on Windows 2000 (for idiots)

Last Update: Nov 19, 2024

I’m a Lamer! How do I install Active Directory on my Windows 2000 Server? You can configure your server as a Domain Controller manually (as covered in How to Install Active Directory on W2K), but if you don’t have the time, skill, brains or will to do it manually, it can still be done with…

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How to Install Active Directory on Windows 2000 (for Lamers)

Last Update: Nov 19, 2024

I’m a Lamer! How do I install Active Directory on my Windows 2000 Server? You can configure your server as a Domain Controller manually (as covered in How to Install Active Directory on W2K), but if you don’t have the time, skill, brains or will to do it manually, it can still be done with…

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How do I install Active Directory on my Windows Server 2003 server?

Last Update: Sep 17, 2024

Installing Active Directory isn’t always a straightforward process, so Daniel Petri walks you through an AD install for Windows Server 2003.

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How to Install a Replica DC in an Existing AD Domain on Windows Server 2003

Last Update: Jul 08, 2025

How do I install a second Domain Controller in my Active Directory domain on my Windows 2003 Server? First make sure you read and understand Active Directory Installation Requirements. If you don’t comply with all the requirements of that article you will not be able to set up your AD (for example: you don’t have…

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How to Post to Newsgroups Without Getting spammed?

Last Update: Jul 07, 2025

How should I post messages to newsgroups without getting spam and viruses? Featured Product: Free AntiSpam for Exchange! DNS Blacklist checking & more – GFI MailEssentials. A fully functional 30-day trial is available for download. Newsgroups allow you to “post” messages (called a “posting”), respond to others’ posts, and even download files they’ve left there…

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IconZone

Last Update: Dec 03, 2024

Description This utility changes desktop icons, start-menu icons and quick-launch icons as well as proxy settings whenever the computer’s IP address is changed. It is also capable of running scripts whenever the IP address changes. Here are a number of usage scenarios: Configure a laptop computer to automatically set the organizational proxy server as the…

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Internet Explorer 5.01 SP2 Info

Last Update: Sep 17, 2024

Where can I download Internet Explorer 5.01 Service Pack 2 from? Why should I install it anyway? Although made obsolete by IE 6.0 and now IE 6.0 SP1, Internet Explorer 5.01 SP2 is still a valid option for many Windows 9X users. See the Download Other IE Versions page for other IE versions. Internet Explorer…

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Internet Explorer 5.5 SP2 Info

Last Update: Sep 17, 2024

Where can I download Internet Explorer 5.5 Service Pack 2 from? Why should I install it anyway? Although made obsolete by IE 6.0 and now IE 6.0 SP1, Internet Explorer 5.5 SP2 is still a valid option for many users. Note: Microsoft has stopped supporting Internet Explorer 5.5 SP2. To download IE5.5 SP2 you’ll need…

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