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John Wragg Consultancy

PC support, website development and IT consultancy,
for your peace of mind and effectiveness

 

John Wragg is based in Findhorn, near Forres and Elgin in Moray, Scotland

 
 

Website Design Services

Gain credibility, attract more qualified enquiries and maintain existing relationships.

Website Systems

Background and reviews:

Website Tools

Advice on how to develop your own website

 

PC Support Services

Save time and stress through our friendly help and support.

Internet Marketing

increase your business effectiveness, with

IT Consultancy

Our consultancy support services cover Internet, IT and IS strategy development and project management, as well as IT user training and business skills development.

 
 

 

Contact Us to discuss your needs or for further information.

Or see John's Support Blog

Or see JohnWragg.org.uk for other services

 

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IP Options Processing
Hosts call procedure ipdstopts to handle options in arriving datagrams. Although our procedure does not implement option processing, it parses the option length octets and deletes the options field fr...

LANs for Organizational Needs
The earlier manifestations of the PC-based LANs, by way of contrast, were not designed to provide connectivity except to a file server and to other micros on the network.

Choosing Broadband Technologies
Each broadband technology has its strengths and weaknesses.

Periodic TCP/IP Routing Table Maintenance
The system initiates a periodic sweep of the routing table to decrement time-to-live values and dispose of routes that have expired. Procedure rttimer implements the periodic update.

Basic Network Topologies
It is possible for a single communications system to provide communications for two or more concurrently operating computer networks. I will review several characteristic (although oversimplified) net...

 


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www.johnwr.co.uk
John Wragg now lives in Findhorn near Forres in Moray, Scotland.
Copyright 2005, 2006, 2008, 2009, 2012 John Wragg

Tel: +44 (0) 7802 725 003