Internet and Technology

Article by WSS

If you have a LAN (two or more computers connected in a network) with an Internet connection (via a modem, cable, …) it may be worthwhile to make the Internet accessible to other computers LAN by installing software that will serve as a proxy, that is to say, which provides access to network computers by proxy, by redirecting information.

However, the greater the number of users is important the more bandwidth for each of them will be low because the users share the flow … So if eight people are connected to an ADSL 512 Kb / s, there will be only 64 kb / s per person, 6 or 7 kb / s per person …There are many software that can perform this function, however, Windows 98 and Windows XP natively offer such functionality.

Assume then that the connection is already configured on the PC with internet access.This computer (PC # 1) will act as a NAT router while the other network computers will be clients (PC 2, 3 and 4 …).We will select the address and 192.168.0.1 for PC # 1 that has the Internet connection (the other will respectively IP addresses 192.168.0.2, 192.168.0.3, 192.168.0.4 …).Server on Windows XP/2000

To allow Internet Connection Sharing on the host (the one with an Internet connection), just click the right mouse button on “My Network Places” on the desktop and choose Properties from the menu. Right-click on the icon for your connection and choose Properties. Then click the Advanced tab and check Allow other network users to connect through this computer’s Internet connection and the other two boxes. Then confirm by clicking OK and close the Network Connection window.Clients on Windows XP/2000

The next step is to configure the gateway on the clients. The gateway is the IP address of PC # 1 that has Internet connection, or 192.168.0.1 in our case.

In the “Property of Internet Protocol (TCP / IP)” in the “General” tab, type 192.168.0.1. as a gateway for each client. Still in the “General” tab, click “Use the following DNS server address” and enter the following information:

Preferred DNS server: 192.168.0.1Alternate DNS server: nothing

They correspond to the DNS (Domain Name Server) primary and secondary.Windows Server 98

To share the connection of a computer running Windows 98, you must first install the service “Internet Connection Sharing”. For this we need to go to Start / Settings / Control Panel / Add Remove Programs / Windows Setup / Internet Tools and then select “Internet Connection Sharing”. Confirm by clicking “ok” and specify the directory of the CD-ROM of Windows 98 when prompted.Clients on Windows 98

It is necessary to configure the clients (other computers on the network) so they know that the connection is made through the PC1. In the “bridge” the window “TCP / IP Properties”, enter 192.168.0.1 as a new gateway and be sure to click on Add. In the “DNS Configuration”, click “Enable DNS” and enter the following information:

Host: Name of the PC1 / / for all PCs (except PC1 itself)Domain:

In “DNS Server Search Order”, put “192.168.0.1″ and click “Add”.

There’s nothing better than going on vacation to get away from it all.  The only thing that may be better than enjoying a long, relaxing vacation may be sharing that long, relaxing vacation with family and friends.  With the invention of the digital camera, it is easier than ever to capture the very best moments of your very best vacations in detail.  The days of blurry snapshots are over, and high quality digital images are the norm.  With instant digital photo-critiquing ability, many family and friendly affairs can turn into a full-time photo shoot of victims powerless to stop the photographer in his shutter-happy state.  In order to avoid the over-taking of pictures, many promises are made to share favorite shots after the vacation is over.  What tends to foil this clever plan is the infrequency with which photos actually do make it from one party’s desktop to another’s.  As soon as we are back in the “real world” memories of a vacation well spent tend to drift into the background behind meeting notes and to-do lists of errands, far more important than photo sharing.  Let’s face it, the process of downloading digital photographs is far easier than the process of actually developing film.  However, the actual “work” time for the photographer is far greater than merely dropping off a roll of film at the store.  Add in the time required to then post, paste, or send the photos over the internet, and it truly is a chore to share entire albums of tens, or sometimes hundreds of photos.  The verdict?  The chances of getting last summer’s trip to the Cape from Uncle Jimmy are probably slim to none.  In order to save unsuspecting photo sharers from suffering this unfortunate fate, there is another way.  With the advent of 4G WiMax internet technology, users are enjoying the ease of sharing information on the go.  With WiMax ready technology available in devices like PDAs, cellular telephones, and laptops it is easier than ever to get mobile broadband access on the go.  For photo sharers, this equals the ability to send and share their experiences right from their favorite vacation spot.  Taking this file and photo sharing ability one step further, WiMax equipped cameras will allow the user to send their favorite shots to friends with all the quality of a digital photo, and the ease of a camera phone.  This ability to share and acquire information and visual images with ease will not only have great value for the average amateur photographer, but the world of media at large.Already available in many US cities, WiMax wireless internet provides a service that Wi-Fi hotspots cannot: mobility.  With coverage areas covering entire urban areas, it doesn’t matter where you snapped that perfect shot, 4G still lets you connect to the web.  Using mobile broadband technology it will be possible to get movies, music, documents and more on the go, with all the speed and convenience of a home office computer.  Making the internet truly wireless will be the technological revolution of the future, but for many internet users, the future is here today.

UserGate for Schools prevents the usual headaches of installing and maintaining a safe and secure Internet connection sharing. The system runs on a Windows PC and provides simple installation, automatic configuration and easy customization.

Distributing Internet connectivity among students has vastly different requirements from sharing the same Internet connection between users in an office. Sharing a connection could not be easier with the broad availability of various hardware and software routers and firewalls. Not being able to control how the connection is being used is usually what prevents many schools from sharing Internet connectivity to students. Unrestricted and uncontrolled access to Internet resources by underage students can cause more harm than good. Numerous online and Flash-based games not only deter from the education process, but often link to malicious code that will infect all school computers if given the slightest chance.UserGate Security Server by Entensys (http://www.entensys.com/) prevents the headaches of installing, configuring and maintaining Internet connection sharing. The system runs on a Windows PC and provides simple installation, automatic configuration and easy adjustments.
UserGate Security Server installs as a NAT and DHCP server with extensive firewall protection, traffic shaping and real-time anti-virus control. The DHCP server assigns network addresses and configures network parameters for all connected PCs automatically, while the NAT driver provides transparent operation to all network users.
All traffic to and from connected PCs flows exclusively through the UserGate Security Server, making it easy to shape, control and filter any resources visited by the students. The built-in anti-virus software scans every bit of information that passes through UserGate Security Server, which, when combined with firewall protection from external attacks, makes a school network literally attack-proof.
It is not easy to protect school computers against virus, spyware and malware attacks. Installing, maintaining and updating anti-virus software on numerous computers consumes considerable amounts of time, and still cannot provide 100% protection against the newest threats.
UserGate Security Server removes that headache, too. With two anti-virus cores built-in: Panda and Kaspersky Antivirus (KAV), UserGate Security Server is always up-to-date, providing continuous protection to all connected PCs by monitoring all traffic that flows through the system.
UserGate Security Server is easy to install and maintain, and provides simple access to advanced configuration settings. The system does not require an experienced network administrator to set up, configure or maintain the sharing of your network. UserGate Security Server is a highly versatile solution that provides the ultimate control and security to your network at a very affordable price. Don’t take this reviewer’s word for it, try UserGate Security Server for free at: http://www.entensys.com/

Connect Your Entire LAN to the Internet with a Single IP Address Simply and Securely.

If you want to connect a local area network (LAN) in your office to the Internet today, you have a number of options to choose from. The simplest is to buy a small stand-alone router or gateway. These devices are inexpensive, reliable and mostly plug-and-play. If you know what you’re doing, you can configure a router and network in less than an hour. However, this might not be your best choice.

There are significant reasons why a router is not the best solution. How secure does your data need to be? Do you need (or would like) to know exactly how much Internet traffic each of your PCs consumes? Do you have priority traffic that must get through? Do you have employees that might be using the Internet for purposes other than work?

A simple hardware gateway will not satisfy these conditions. You could invest a small fortune for a sophisticated device that would satisfy some of these and still not have the optimum solution.

An alternative to expensive hardware is setting up a dedicated computer to control Internet access and connectivity. In this case, your choice is economically limited to one of two platforms: *nix or Windows. While *nix (Unix, Linux, FreeBSD, etc) is technically terrific for the task, it is not as cost effective in a typical company with a multitude of Windows PCs. A *nix system bears a very important drawback: you will either have to hire a system administrator to manage it, or be unable to fine-tune Internet access and constantly risk network failure.

Using a dedicated Windows PC to control how your LAN users access the Internet is the only remaining choice.

While Windows itself provides a limited set of basic connectivity features, you will need to purchase and set up dedicated gateway server software to use advanced features. UserGate 4.1 by Entensys is a proxy server for Windows that is not only the simplest gateway server to configure and use, but also has all the advanced features your company may require.

There are two ways UserGate can share an Internet connection among your LAN users. One way is to configure it as a gateway, very similar to stand-alone hardware routers. UserGate supports NAT and port mapping in order to share a single IP address between multiple LAN users. Using NAT requires no additional configuration on client computers, and is the fastest way to set up Internet access.

If you want more advanced features such as caching your Internet connections, you can set up a User Gate Proxy Server. The proxy server automatically caches the web resources your LAN users access most often, saving significant Internet bandwidth and seriously increasing access speeds.

There is no way for your LAN users to bypass UserGate to access the Internet, so you can create powerful rules to control user access to certain resources or protocols.

You can also set up content filtering to block unwanted Web sites, resources, or specific file extensions (such as MP3 music).

Your LAN is always protected from external attacks by UserGate’s built-in firewall. The built-in anti-virus quickly scans all Internet traffic to protect your network from spyware, viruses and malicious software.

If you have different kinds of traffic, such as VoIP, you can easily limit the maximum bandwidth for every user in order to ensure that time-sensitive clients get the necessary bandwidth. You can also limit the connection speed for any network user and can control the maximum load of your Internet connection.

UserGate keeps complete statistics on every LAN user, including the list of visited URLs and their online time.

Its built-in billing makes UserGate a perfect solution for splitting a single Internet connection between several users.

The latest version adds VPN support, providing the same connection sharing and statistics features for private and public networks. Support of VPN and transparent proxy makes UserGate a perfect solution for safe and secure Internet connection sharing.

UserGate is powerful, user-friendly and simple to use. Download your free evaluation version at: http://www.entensys.com/