Components which enable internet

Skip to content 1. They are used to manage websites on a server and often include software that allows the hosting and sharing of large files. Mail server: The mail server is an application that receives incoming email from local those within the same domain and remote senders, as well as forwarding on outgoing mail for delivery.

A computer dedicated to running this application is known as a mail server. Programs such as Microsoft Exchange is a common mail server program. Proxy server: A proxy server is a dedicated compute or software system that acts as an intermediary between and end-point device and another server from which a user or client is requesting a service.

As in traditional architecture, the focus is on the user and on user requirements. This requires particular attention to web content, the business plan, usability, interaction design, information architecture and web design. Although there is a vast majority to choose, you don 't always have to use these types as in some cases they can be community owned or private in some cases.

Web Hosting Services: A web hosting service is a internet service that allows for a person or. Get Access. Read More. Content Management Systems Words 5 Pages flows in any given work environment. Popular Essays. If all goes well, the server machine sends a short message back to the client with a message saying that everything is okay see Figure 1, followed by the web page itself.

This type of message is contained in an HTTP header. This is because some web developers have just left the web server to return their default error pages, and others have coded custom error pages to appear when a non-existent page is returned.

You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. Blog at WordPress. All modern computers,tablets and smart phones are capable of using DHCP and are configured to use it by default. For home and small office networks the DHCP service is built into the router that connects to the Internet.

If no DHCP service is available clients will automatically assign their own IP address known as a local address or you can manually assign them called static addresses. The domain name system is the heart of the Internet. It is responsible for resolving domain names to IP addresses. The DNS servers store the data and are mainly located on the Internet e.

This is normally assigned by the DHCP server. See Understanding DNS. Cannot normally be changed. Examples are email to FAX gateways. On earlier networks and in earlier networking courses routers were called gateways, and the term is still used when setting up networking clients. Your email address will not be published. Internet Connection Components and Functions The diagram below shows a typical home or small office network layout.

DSL Modem — This converts digital signals into analogue signals that are suitable for sending over a telephone line. Firewall and NAT Router A firewall functions like a router except that it blocks traffic from the external network according to user configured rules. NAT effectively isolates your home network from the Internet. Computer Firewalls — If you are using Windows XP or above then you also will have firewall on your computer.

When you install applications e. Skype you will find that they change the firewall settings. This configuration is not normally used anymore. General Networking Physical Components and Functions Hubs,bridges and switches are all devices used to connect computers and other devices together on an Ethernet network.

Network Hub A hub connects two or more computers together like switch in diagram above. Network Bridge A bridge connects two network segments together and is a selective repeater.

It uses this information to decide whether or not to repeat the traffic on a network segment. A Bridge works at level 2 data link Level and will transmit broadcasts. Bridges are also being replaced by switches Network Switch A switch Connects two or more computers together and used today in preference to a hub or bridge. A switch is effectively a bridge with more ports. See the Basic networking Course There are various types being sold marketed as unmanaged,managed and smart.

Home Routers A router connects networks together. Routers and Modems and Filters If you look at the internet connection diagram above you will see a broadband filter. However you will need to check your socket type to determine this. A modem, if required, is placed between the router and the internet connection. There are many home routers on the market that support 3G and 4G mobile networks.

Before you purchase one for home use you should check the network availability in your area. Here is a screen shot from the ee mobile provider. Modern ones plug directly into a mains socket and require no other connections.

Note: see Wi-Fi homeplug adapters below. You will need a Sim and a mobile data plan.