Domain Controller – Free Active Directory Server

A Samba4-based Active Directory-compatible domain controller that supports printing services and centralized Netlogon authentication for Windows systems, without requiring Windows Server. Since 1992, Samba has provided a secure and stable free software re-implementation of standard Windows services and protocols (SMB/CIFS). Run From Browser Deploy Domain controller on Amazon EC2 Builds 285MB VM 252MB ISO VMDK, OpenStack, Xen, Docker (?)…
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How to configure Ubuntu Linux server as a Domain Controller with samba-tool

With the help of Samba, it is possible to set up your Linux server as a Domain Controller. Before you get too excited, I’m not talking about an Active Directory Primary Domain Controller (PDC). On the other hand, it can act as a Windows NT4-style domain controller. One major advantage of this configuration is that…
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Greg’s Videos


Vigenere Cypher

The Vigenère cipher is a method of encrypting alphabetic text by using a series of interwoven Caesar ciphers based on the letters of a keyword. The key word or phrase can be anything.  The trick is that both parties MUST know the key in order for the code to be deciphered. An example of this is: Choose your code…
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WordPress Tutorial

A guide to all the basics you need to get up and running immediately. Think of it as the quick-start WordPress tutorial you never knew you needed.  Click Here To Get Going Learn how to turn that blog into a static website for your business or your organization. A handy glossary to demystify WordPress terms. Register: Go to and create…
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The Word For The Day 5-8-18

Fresh Fresh Ideas Fresh Thoughts Fresh Eyes Fresh Spirit Let’s Get FRESH!

Greg’s Rules For Today

#7 Clock watching is dangerous #13 Nobody likes to be ignored #16 Act quickly in all things #24 Be honest with yourself and others – it works better. #32 Dress Correctly – You don’t know who you’ll meet today. #33 Small thinkers think small thoughts; big thinkers change the world. #37 Read Very Carefully #44…
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Action! Hot CEO Blog Goes Vlog With Dowling Debut

Mirroring the evolution of his digital marketing agency, Greg Demetriou is adding some live action to his thriving industry blog. Spun out of his Edgewood-based Lorraine Gregory Communications, Demetriou’s Greg’s Corner Office is a chief-executive consultancy leveraging Demetriou’s quarter-century of elbow-rubbing in major-league C-suites – a “great opportunity to take everything I’ve learned about being a CEO and…
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Barcoding Tutorial

This tutorial details the methods used to generate UPC-A Barcodes. This includes generating the CHECK DIGIT and converting EPS files to JPG files.

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