Complete Network

Home Network, Wireless Network and Computer Networking Made Easy






Thinking of setting up home network? Yep.. You have come to the right place.
Do you think it’s hard to set up network? No, it’s actually pretty easy, what you need is some knowledge and right tools..
Here are some benefits for setting up network at home:
1) Share Internet Connection and printer with family members
2) Set up family discussion board or photo database
3) Set up network game party
4) Learn computer and networking knowledge

The most common network is Ethernet, it’s a very popular LAN (Local Area Network) technology due to its inexpensive setup cost and reasonably fast speed.
The speed of an Ethernet can be 10Mbps (Ethernet), 100Mbps (Fast Ethernet) and 1000Mbps (Gigabit Ethernet). Mbps is called Megabits per seconds. From my opinion, 100Mbps speed might be sufficient for your network needs.
The most basic equipments you need for home network are DSL/cable connection, router and network cards. Furthermore, most of the computers now are equipped with network card.
It's very straight forward, isn't it? So, ready to go?

Does Windows 95 Support Internet Connection Sharing?

Q. "I have two computers: one is running Windows 95 and has a cable modem Net connection. The other runs Windows 98 (and Windows 2000). I need the Windows 95 computer to share the cable connection with the other."

A. Microsoft makes a software package called ICS that support Internet Connection Sharing between Windows computers running Win98 Second Edition or newer (including Windows 2000). Microsoft ICS does not run on Windows 95... party software installed. Both WinGate and Sygate Home Network implement this feature for Win95 and later versions of Windows. These packages work with cable and DSL service as well as with traditional dial-up modems. Shareware and freeware alternatives also exist.

Who Created the Internet Network?

Question: Who Created the Internet Network?
Development of the technologies that became the Internet began decades ago. The development of the World Wide Web (WWW) portion of the Internet happened much later, although many people consider this synonymous with creating the Internet itself.

Answer: No single person or organization created the modern Internet, including Al Gore, Lyndon Johnson, or any other individual. Instead, multiple people developed the key technologies that later grew to become the Internet:
Email - Long before the World Wide Web, email was the dominant communication method on the Internet. Ray Tomlinson developed in 1971 the first email system that worked over the early Internet.
Ethernet - The physical communication technology underlying the Internet, Ethernet was created by Robert Metcalfe and David Boggs in 1973.
TCP/IP - In May, 1974, the Institute of Electrical and Electronic Engineers (IEEE) published a paper titled "A Protocol for Packet Network Interconnection." The paper's authors - Vinton Cerf and Robert Kahn - described a protocol called TCP that incorporated both connection-oriented and datagram services. This protocol later became known as TCP/IP.

Null Modem Cable

Definition:
A null modem cable connects to two standard serial ports for networking two computers together. Null modem cables enable direct data transfer with a minimum of setup required.
A null modem cable differs from ordinary serial cables the same way as Ethernet crossover cables differ from ordinary Ethernet cables. Null modem cables reverse the transmit and receive lines on end to enable direct two-way communication. A null modem cable for PCs ordinarily follows the RS-232 standard and uses the same serial ports as RS-232 cables.
An RS-232 null modem cable transfers data at the rate of 115 Kbps. The fastest null modem cable, based on RS-422, supports up to 450 Kbps.
Today, null modem cables are used primarily by engineers. USB keys, Ethernet crossover cables, and general purpose network routers have effectively made the null modem cable obsolete.

Introduction to Peer to Peer Networks

Peer to peer
is an approach to computer networking where all computers share equivalent responsibility for processing data. Peer-to-peer networking (also known simply as peer networking) differs from client-server networking, where certain devices have responsibility for providing or "serving" data and other devices consume or otherwise act as "clients" of those servers.



Characteristics of a Peer Network
Peer to peer networking is common on small local area networks (LANs), particularly home networks. Both wired and wireless home networks can be configured as peer to peer environments.
Computers in a peer to peer network run the same networking protocols and software. Peer networks are also often situated physically near to each other, typically in homes, small businesses or schools. Some peer networks, however, utilize the Internet and are geographically dispersed worldwide.
Home networks that utilize broadband routers are hybrid peer to peer and client-server environments. The router provides centralized Internet connection sharing, but file, printer and other resource sharing is managed directly between the local computers involved.


Peer to Peer and P2P Networks
Internet-based peer to peer networks emerged in the 1990s due to the development of P2P file sharing networks like Napster. Technically, many P2P networks (including the original Napster) are not pure peer networks but rather hybrid designs as they utilize central servers for some functions such as search.
Peer to Peer and Ad Hoc Wi-Fi NetworksWi-Fi wireless networks support so-called ad hoc connections between devices. Ad hoc Wi-Fi networks are pure peer to peer compared to those utilizing wireless routers as an intermediate device.
Benefits of a Peer to Peer NetworkYou can configure computers in peer to peer workgroups to allow sharing of files, printers and other resources across all of the devices. Peer networks allow data to be shared easily in both directions, whether for downloads to your computer or uploads from your computer.
On the Internet, peer to peer networks handle a very high volume of file sharing traffic by distributing the load across many computers. Because they do not rely exclusively on central servers, P2P networks both scale better and are more resilient than client-server networks in case of failures or traffic bottlenecks.

Lans and Wans

No matter what the size of your organization, our 5 Step common-sense approach to building local and wide area networks (LANs and WANs) addresses all your business IT needs. From the communications infrastructure to the end-user's desktop, we don't just install networks – we integrate them.

Step 1: Infrastructure
We start by ensuring that your physical network wiring and infrastructure can withstand ever increasing bandwidth demands. From data cabling and hubs, to wireless access points, switches and routers, we use only state of the art "open" network components from leading vendors such as Cisco Systems.

Step 2: Servers
Next, we leverage Microsoft's Windows Server 2003 or Small Business Server 2003 technologies to provide the basis of your organization's local area network and corporate intranet. We provide a "turn-key" solution starting with a server hardware platform from a leading supplier such as Dell, IBM or Hewlett Packard. We can furnish all necessary hardware and software and will recommend essential peripherals such as network back-up and power protection. Our experience with integrating Microsoft technologies is unsurpassed and of course, we integrate and test it all.

Step 3: Business Applications
Then, we expertly layer selected business applications to provide your organization the power it needs to succeed including:

• Network file and printing services
  
• Electronic mail


• Web applications
  
• Content management applications


• Remote access (VPN)


• Network backup


• Network anti-virus


• Network fax


• Accounting applications


• Database servers


• Security services


• Groupware and collaboration software


• Point of Sale (POS)
  

Step 4: Desktop Workstations
We also review and if necessary recommend upgrading or replacing your existing desktop workstations to work with Windows XP Professional. We provide your employees a "common desktop" by integrating your business applications such as Microsoft Office 2003, client applications (e.g., e-mail, anti-virus) and user login profiles to provide both flexibility and security on each workstation. And we'll make sure that all your non-PC (e.g., Mac) workstations work together as well.
Step 5: Ongoing Support
Finally, we provide the training and ongoing technical support you need to keep your network running smoothly. We also offer additional information technology services including network monitoring connectivity enterprise consulting services.


Do you collaborate with several people in your office?
Do you work with different people on the same project?
Do you have multiple computers from which you work?
If you answered "yes" to any of the questions above, the iBiz Server/Client package is for you!Using the iBiz Server/Client package, all of your client and project information can be stored on one central computer on your network. The information can then be accessed by using an iBiz Client program running on any other computer connected to the network (see diagram)
Setup
The first thing to do is make sure you have a copy of iBiz Server and at least one copy of iBiz Client.
Put a copy of iBiz Server on the computer where you want to store your data. This computer will also need to have the clients for whom you are going to work in Address Book.
Launch iBiz Server by double clicking it. If you are you upgrading from iBiz 1.4.x, iBiz Server will ask if you want to import old iBiz projects. Before choosing yes, please read the document titled "Attn-Upgrading Users" that explains how to ensure a smooth upgrade.

iBiz Server
iBiz Server acts as a "middle-man" in that it allows users running iBiz Client on other machines, connected through a local area network, to access project information stored on the machine running iBiz Server. This allows users to collaborate on projects while they are working on separate computers.
When running iBiz Server in the main window you will see a checkbox next to each client. This checkbox sets whether or not a client is available to other users on the network running iBiz Client. On iBiz Server you can see which users are connected via iBiz Client by looking in the "Connected Users" drawer.

iBiz Client
On another machine, or on the same machine on which iBiz Server is running, launch iBiz Client by double clicking it. All of the clients which are on iBiz Server (which have the checkbox marked as checked) should appear in the clients list.
iBiz Client should behave exactly as the single user version of iBiz, in that one can add, delete and modify projects and job events. The only limitation is that users running iBiz Client can not change client information remotely because this information is stored in the Address Book database on the same machine as iBiz Server.


Business Networking Resources

Business Networking is an essential skill for most business professionals, especially entrepreneurs. This page provides business networking resources and tips to help you improve your business networking skills and grow your business network.


Networking is the practice of linking computing devices together with hardware and software that supports data communications across these devices.Networking Basics Quiz / Q&AAnswer this series of common questions about basic computer networking concepts to quickly expand your knowledge of the topicConnecting Two ComputersThe simplest kind of home network contains exactly two computers. You can use this kind of network to share files, a printer or another peripheral device, and even an Internet connection. To connect two computers for sharing network resources, consider these alternatives.Network File Sharing 101Computer networks allow you to share files with friends, family, coworkers and customers. Learn about the diffe


common dhcp server problems
If multiple workstations are experiencing problems with leasing IP addresses, then the problem is most likely related to the DHCP server itself. If you suspect that the DHCP server is the cause of the problem, then you might start off by doing some ping tests to verify that the DHCP server is able to communicate across the network.
If the DHCP server is able to communicate with other computers on the network, then I recommend verifying that the DHCP server has an IP address that is compatible with the scope that the server is configured to assign addresses from. For example, if the DHCP server’s scope consists of addresses from 192.168.0.1 to 192.168.0.50, then the server will not actually be able to assign those addresses unless the server itself has been assigned a static address in the same subnet range, such as 192.168.0.0 or 192.168.0.51.
If this still doesn’t solve the problem, then I recommend checking the basics. For example, you should make sure that the DHCP server is still authorized by the Active Directory to lease IP addresses. You should also check to verify that the scope is active, and that the necessary services are running on the DHCP server.

Networking Managment With Windows Server 2003

Network Management With Windows Server 2003
Like Microsoft Windows XP Professional, Windows Server 2003 groups its administration routines under an ensemble referred to as Administrative Tools. Unlike the former, the later provides various ways of accessing the tools.After you have just setup Microsoft Windows Server 2003 and installed Active Directory, the first window that comes up provides some of the most regular tools you will need to administer the network:The middle section of this window provides only a limited list of tools, considered to be the most regularly used. Alternatively, you can display the whole list of tools in a window. To do this, under the Tools and Updates Section, you can click Administrative Tools:


Network Management With WinXP
Most of the tools used to locally manage a Microsoft Windows XP Professional or a peer-to-peer network are listed in the Administrative Tools window. To open it, you can open Control Panel and double-click Administrative Tools:


MANGMENT OVERVIEW
INTRODUCTIONAs a network administrator, you will perform various tasks to keep the network up and running. These include computers, users (the people who use the network), the peripherals (the other machines attached either to the computers or directly to the network. To make this possible, both Microsoft Windows XP Professional and Windows Server 2003 provide the various tools you will need. If you are managing a peer-to-peer network, the former provides local and possibly small network tools to manage workstations. For a client/server network, Microsoft Windows Server 2003 provides all the tools you need to locally or remotely manage the servers or the clients.


HOW TO MEASURE A NETWORK
Performance parameters:Latency: Time required to transfer an empty message between relevant computers.Sum total ofdelay introduced by the sender software.delay introduced by the receiver software.delay in accessing the network.delay introduced by the network.Data transfer rate: is the speed at which data can be transferred between sender and receiver in a network, oncetransmission has begun. (bit/sec)Message transfer time = latency + (length of message) / (Data transfer rate).Bandwidth : is the total volume of traffic that can be transferred across the network.Max. data rate (bit/sec) = carrier BW · log2 (1 + (signal/noise))this maximum (Shannon's Limit) is theoretical, not reacheable in practice!Ex.: phone line BW = 3 kHz, S/N = 30 dB = 1000 "src="http://users.ictp.it/~radionet/1998_school/networking_presentation/pictures/arrow_forward.GIF" width=20 align=absMiddle border=0> Max. data rate = 30 kbit/sec


WHY A COMPUTER NETWORK ?
The main reasons are:Distribute pieces of computation among computers (nodes)Coordination between processes running on different nodesRemote I/O DevicesRemote Data/File AccessPersonal communications (like e-mail, chat, audio/video conferencing)World Wide Web... and many other uses


Introduction to Client-Server Networks
The term client-server refers to a popular model for computer networking that utilizes client and server devices each designed for specific purposes. The client-server model can be found on the Internet as well as local area networks (LANs). Examples of client-server systems on the Internet include Web browsers and Web servers, FTP clients and servers, and DNS.

What is (Computer) Networking?

Networking is the practice of linking computing devices together with hardware and software that supports data communications across these devices.

Networking Basics Quiz / Q&AAnswer this series of common questions about basic computer networking concepts to quickly expand your knowledge of the topic

Connecting Two Computers

The simplest kind of home network contains exactly two computers. You can use this kind of network to share files, a printer or another peripheral device, and even an Internet connection. To connect two computers for sharing network resources, consider these alternatives.

Network File Sharing 101

Computer networks allow you to share files with friends, family, coworkers and customers. Learn about the different methods for file sharing including Windows, FTP, P2P and Web based.FIREWALLSA network firewall guards a computer against unauthorized network access. Firewalls are one of the essential elements of a safe home or business network.
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