IT Governance, Risk, and Compliance:

Virtual Private Network

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September 22, 2012  12:07 AM

A Few Fundamentals of Networking Electronically Encoded Data – Part IV



Posted by: Robert Davis
Central Processing Unit, Configuration Management, CPU, ICT, Information Communication Technology, IT Architecture, IT Configuration, Multiplexor, Risk Management, Service Delivery, Token, Transport Mode, Tunnel Mode, Virtual Private Network

In TDM (typically utilized for digital signals) a device is given a specific time slot during which it can utilize a particular channel. In contrast, with FDM (typically utilized for analog signals) the channel is subdivided into sub-channels, each with a different frequency width that is assigned...

September 20, 2012  1:09 AM

A Few Fundamentals of Networking Electronically Encoded Data – Part III



Posted by: Robert Davis
Central Processing Unit, Configuration Management, CPU, ICT, Information Communication Technology, IT Architecture, IT Configuration, Multiplexor, Risk Management, Service Delivery, Token, Transport Mode, Tunnel Mode, Virtual Private Network

Packet assembly and disassembly between telecommunication links Input or output (I/O) channels are paths along which datum are transmitted to and from primary storage. These communication channels also handle the transfer of datum to and from I/O devices. As a result, this...


September 15, 2012  12:24 AM

A Few Fundamentals of Networking Electronically Encoded Data – Part II



Posted by: Robert Davis
Configuration Management, ICT, Information Communication Technology, IT Architecture, IT Configuration, IT Infrastructure, IT Service Delivery, Multiplexor, Risk Management, Service Delivery, Token, Transport Mode, Tunnel Mode, Virtual Private Network

All of the computers and other hardware connected to a particular network must follow the same rules or operations commonly called protocols. Operational rules are typically divided up into layers so a programmer or network administrator need only be concerned with the layer with which the...


September 13, 2012  12:42 AM

A Few Fundamentals of Networking Electronically Encoded Data – Part I



Posted by: Robert Davis
ICT, Information Communication Technology, IT Architecture, IT Configuration, IT Infrastructure, IT Service Delivery, Multiplexor, Risk Management, Service Delivery, Token, Tunnel Mode, Virtual Private Network

Any distributed IT infrastructure requires a complex set of communication functions for proper operation. Many of these functions, such as reliability mechanisms, are common across IT architectures. Thus, the communication task is generally viewed as consisting of a modular architecture, in which...


July 6, 2009  7:02 PM

Trans-border Communication Protection – Part IV



Posted by: Robert Davis
Configuration Items, Encapsulating Security Payload, Encapsulation, ESP, Infrastructure, Internet Protocol Security, IPSec, Open Systems Interconnection, OSI, Privacy, Secure Socket Layer, SSL, Transport Mode, Tunnel Mode, Virtual Private Network, VPN

The primary distinguishing feature between IPSec and SSL is their respective OSI reference model protocol communication tier levels. IPSec operates at the network layer of the


July 2, 2009  8:12 PM

Trans-border Communication Protection – Part III



Posted by: Robert Davis
Configuration Items, Encapsulating Security Payload, Encapsulation, ESP, Infrastructure, Internet Protocol Security, IPSec, Open Systems Interconnection, OSI, Privacy, Secure Socket Layer, SSL, Transport Mode, Tunnel Mode, Virtual Private Network, VPN

Generally, a VPN is recognized as a confidential data plexus that employs the public telecommunication infrastructure while maintaining...


June 29, 2009  6:52 PM

Trans-border Communication Protection – Part II



Posted by: Robert Davis
Configuration Items, Encapsulation, Internet Protocol Security, IPSec, Privacy, Secure Socket Layer, SSL, Transport Mode, Tunnel Mode, Virtual Private Network, VPN

SSL is a protocol suite enabling in transit security through data encryption, server authentication, and message integrity at four Open Systems Interconnection (OSI) reference model layers. For Internet communications, SSL is normally utilized in conjunction with an entity's


June 25, 2009  7:43 PM

Trans-border Communication Protection – Part I



Posted by: Robert Davis
Configuration Items, Internet Protocol Security, IPSec, Privacy, Secure Socket Layer, SSL, Virtual Private Network, VPN

Legal compliance with local, national and regional privacy requirements is complex and dynamic. Every problem on the local level compounds exponentially when private data is shared across multiple...


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