Internet Sharing

Internet Sharing

ICS (Internet Connection Service)

ICS is a feature to use internet on the network. It is an in-built feature. This feature used in small network. This feature come Win 98 SE onwards i.e. in Win 98 SE, Win Me, Win XP, Win 2k.

To make ICS

Select connection and go properties.
Tab to sharing, this option will come only on LAN.
Click on ‘ Enable ICS for this connection '.
If we want to dial through another computer on a LAN, then we click on ‘ Enable on-demand dialing '. This option will enable after enabling ICS.
NOTE : -When we make ICS then the IP-address of the server changed to 192.168.0.1 automatically.

Software Proxy

Software proxy is third-party software. It is also used for internet sharing but on a big network. There are many software proxy like Win proxy, Spool proxy, MS- proxy, Browser – gate, Ezasy Proxy, Netscape Proxy, Win gate etc. Among all of these, we normally use Win proxy . There are five versions of Win proxy which are 1, 2, 3, 4 and 5 .

Features of Win Proxy

1. In built DHCP server (comes version 3 onwards)
2. In built Anti – virus (comes version 3 onwards)
3. Automatic Anti – virus update
4. Viewing active connection
5. IP – address restriction
6. Web site restriction
7. Site termination (comes version 3 onwards)
8. Multiple Protocol support
9. Enable logging
10. In – built socks 4 and socks 5
Yahoo messenger use HTTP proxy , but MIRC or MSN messenger use socks to communication.

To install/remove Win proxy trial version

We can download 30 days trial version of win proxy from www.winproxy.com site. After 30 days we need to reinstall it. To reinstall Win proxy trial version, we need to format HD. There are other options to remove Win proxy.
1. Change the time of computer
2. Backup the registry
3. Delete Win proxy entries from registry (win proxy & ositis)

To install Win proxy

1. First run Setup of Win proxy from CD-ROM to install.
2. In welcome wizard click Next.
3. In license agreement screen click Yes to agree.
4. Enter the destination path to install win proxy on HD, either select the default or browse any other.
5. In setup type wizard select any one among Typical, Compact & Custom .
6. In Select Program Folder option, give any name to the program.
7. In Start copying file , it show the current setting and on pressing Next it copies files from CD-ROM to HD.

To configure Win proxy

1. In Win proxy registration dialog box, enter the serial no, name & e-mail ID .
2. Now it asks for to register , click Yes.
3. By Rebuilding cache Database , files retrieved before processing is done by cached.
4. In this wizard, it tells us about IP address of computer on network/ Internet.
5. In setup wizard: Internet protocol , check the protocols which we want to enable.
6. In Proxy port , we give the CERN Proxy Port. We can give any no. up to 80. All the clients also configure same port no. in Internet Connection Properties to access the Internet. Port No. is like a Pin Code. Port No. 16, 20, 80 used for HTTP, 21 for FTP, 23 for Telnet.
7. In Internet News wizard, we enter the Internet News server.
8. In Mail server wizard, we enter the Internet Mail server.
9. In Socks wizard, Select DO if we want to enable Socks 4 and Socks 5 for communication. Here we can also enter the address of DNS server also.
10. In Dial up network wizard, we select either Use Dial up networking or not using dial up networking. If we are using Dial up network then we need to give Phone no, user name and password to dial.
11. If we are using two proxy servers then we enable Cascading . This allows users to access Internet through two proxy server. We also give cascading Proxy Port and Proxy IP address .
12. In Administrator & security option, we give the password to run and remove proxy.
13. There is also a port for Logging, which is default 8000 . Logging allows us to monitor all traffic over the network.
14. In Connection view wizard, we select DO if we want to view active connection otherwise do NOT.
15. On click Finish, it asks for view suggested client configuration. If we press Yes, it show all the configuration in a Notepad file.

Hardware proxy

It is a hardware device, which use dedicated hardware. It also uses a dedicated IP address given by manufacturers. There is no driver required in H/w proxy.

There are two models of hardware proxy, which is launched by D – Link .
(i) DP – 601 (ii) DP – 602

DP – 601 : - It is an H/w proxy, which has in – built modem. It is cheaper than other. It is slow in speed. We can not attach any extra external modem in this type of proxy. If there is problem in server then both the server and modem damaged.

DP – 602 : - It is an H/w proxy, which has COM port to attach external modem. We can use two modems, when there are more users. Then we need two phone lines also. These two modems also load balancing.
To configure H/w proxy
1. Telnet
2. Software install in one PC.
3. Web browser (easy & common)
4. We can configure it by GUI by entering the IP address at Internet Explorer.