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ISP Style Virtual Mail System Print
Written by Chris Gountanis   

This document will explain the process of installing a fully working virtual email system on CentOS Linux using PostFix and Dovecot. I personally finalized my setup with RoundCube Webmail Project for robust online email usage. This how-to is very simple and easy to implement for beginners.

Last Updated on Wednesday, 24 September 2008 21:30
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Office Automation Memo Print
Written by Chris Gountanis   

Company wide automation and group collaboration software is used through out our company. This document will help explain the advantages and disadvantages of each major software package used daily. I have broken the subject down into five main areas.

Last Updated on Tuesday, 01 January 2008 10:03
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VSFTPd Virtual Users Print
Written by Chris Gountanis   

This documenation was created from CentOS using the YUM package manager to keep things simple. Before you dig to deep you need the FTP Server to be installed. You can either install the FTP Server as you install CentOS or YUM group install it after the fact.

Last Updated on Wednesday, 23 January 2008 16:40
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XML Schema Print
Written by Chris Gountanis   

XML Schema is an XML-based replacement for a DTD. The XML schema defines the XML structure of the corresponding XML document. The purpose of an XML Schema is to define the  building blocks or structure of an XML document, just like a DTD.

"A schema is a definition of the syntax of an XML-based language. A schema language is a formal language for expressing schemas. The document being validated is called an instance document or application document." - brics.dk

Last Updated on Tuesday, 01 January 2008 08:59
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XML and Web Services Print
Written by Chris Gountanis   

"The term Web services describes a standardized way of integrating Web-based applications using the XML, SOAP, WSDL and UDDI open standards over an Internet protocol backbone." - Webopedia.com

Web services are solutions that allow communication between machines over networks. Many times these services are accessed over the Internet and processed by the receiving machine.

Last Updated on Tuesday, 01 January 2008 08:55
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Extensible Markup Language Print
Written by Chris Gountanis   

XML is a great way for systems of different breed to communicate in a standard way. For example one system in your company is UNIX and the other is Windows. These systems need to send/receive organized data to each other. XML allows this with the use of server side technology. In many cases XML or JSON will be used on the client as well with a language such as JavaScript.

Last Updated on Tuesday, 01 January 2008 09:25
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