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Secure Browsing Using HTTPS
HTTP (hypertext transfer protocol) is the protocol(set of rules) used between a web browser and web server for reading web pages. Information sent over HTTP is unsecured, but this isn’t a problem with...
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Public Wi-Fi and Mobile Wi-Fi Networks
Public Wi-Fi is available in many countries and locations, and is provided by a variety of organisations. In many cases it is free, but there are also subscription and pay as you go access options....
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Introduction to HTTP : Understanding HTTP Part 1
HTTP stands for hypertext transfer protocol and is used to transfer data across the Web. The first version of the protocol had only one method, namely GET, which would request a page from a server. The...
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Choosing an ISP (Internet Service Provider)
To connect to the Internet you need an Internet connection provided by an Internet Service Provider, commonly known as an ISP. ISPs provide users and businesses with access to the Internet, and...
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Understanding The Domain Name Structure
To understand the domain name structure you really need to understand the problem the structure was meant to solve. The Domain Name Structure and Domain Name System were developed to organise and find...
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SSL and SSL Certificates Explained
Secure Sockets Layer (SSL) and Transport Layer security (TLS ) are protocols that provide secure communications over a computer network or link. They are commonly used in web browsing and email. TLS is...
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DNS Lookups Explained
In this tutorial we will examine what happens when you use DNS to resolve a domain name to an IP address. We look at the exact process involved in resolving a domain name and follow the client request...
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Host Name Resolution Methods Explained
When you type an Internet address into a web browser the web browser needs to convert that web address into an IP address. To do that is uses the the name resolution processes provided by the host...
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DNS Zones and Zone Files Explained
DNS is comprised logically of Domains but physically of zones. A zone consists of a section of the DNS namespace, and can comprise multiple domains or even smaller units like sub domains. Data for a...
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IOT Networking and Messaging Protocols-Quick Overview
The Internet of things will utilize the existing networking infrastructure,technologies and protocols currently used in homes/offices and on the Internet, and will introduce many more. The purpose of...
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How to Setup and Configure your Home Router
Your home router connects your home network to the Internet. Most home routers also function as Wireless Access points and are commonly called wireless routers. Home routers are usually supplied by an...
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Secure Browsing Using HTTPS
HTTP (hypertext transfer protocol) is the protocol(set of rules) used between a web browser and web server for reading web pages. Information sent over HTTP is unsecured, but this isn’t a problem with...
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Understanding IP Multicasting
What is IP Multicasting? -IP multicasting allows a host to send a single packet to thousands of hosts across a routed network i.e. The Internet. It is used mainly for audio (radio) and video...
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Using the Node.js MQTT Client-Starting Guide
The node.js MQTT client is an open source client and can be installed using: npm install mqtt -g Documentation for the client is available here In this tutorial we cover the important client functions...
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Public Wi-Fi and Mobile Wi-Fi Networks
Public Wi-Fi is available in many countries and locations, and is provided by a variety of organisations. In many cases it is free, but there are also subscription and pay as you go access options....
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Beginners Guide to Bluetooth
Bluetooth is a wireless networking protocol (like WIFI) designed to quickly and automatically connect devices like printers, PDAs, Cameras etc to computers and to each other without wires. Common...
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Internet Privacy Using VPNs and Proxy Servers
Privacy considerations aren’t just for those with something to hide. Most people today use the Internet for shopping, banking and business , and would like to do so privately. If you use the Internet...
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How MQTT Works -Client Connections
MQTT is a messaging protocol i.e it was designed for transferring messages, and uses a publish and subscribe model. This model makes it possible to send messages to 0,1 or multiple clients. A useful...
View ArticleUK Broadband Providers (ISPs)
To connect to the Internet you need an ISP ( Internet Service provider). There are 4 main Broadband providers in the UK: BT Broadband Virgin Media EE Sky Broadcasting Note: If you haven’t got an ISP...
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HTTP Headers: Understanding HTTP Part 2
In the second part of our short http course we will look at http headers. If you’ve missed part 1 then here it is- Part 1- http basics HTTP Headers HTTP headers re used to convey additional information...
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