How do you configure a proxy server in Windows XP?

Answer 1

As a prerequisite you need to have set up Group Policy and an Active Directory structure, you also need to have installed the GPMC. Open GPMC and right click policy to edit

This should bring up "Group Policy Editor"

Expand "User Configuration"

Expand "Windows Settings"

Expand "internet Explorer Maintainace"

Select "Connection"

Double click "Proxy Settings"

Enter proxy server details in top box. This change would apply to all users that share the policy. Solution: Enable Web Proxy Automatic Discovery in Internet Explorer

On Web Proxy client computers running Internet Explorer 5 or later, do the following:

On the Tools menu, click Internet Options.

Click the Connections tab.

Click LAN Settings.

Click to select the Automatically detect settings check box, and then click OK two times.

Enable Web Proxy Automatic Discovery on Firewall Client for ISA Server 2004 Computers

To enable Web Proxy automatic discovery on a Firewall client, do the following:

In the Web Browser tab of the Microsoft Firewall Client for ISA Server 2004 dialog box, select Enable Web browser automatic configuration.

To apply settings immediately, click Configure now.

Enable Automatic Discovery for Firewall Clients in ISA Server 2004

To enable automatic discovery for Firewall clients for ISA Server 2004, do the following:

In the console tree of ISA Server Management, click Configuration, and then click Networks. In the details pane, click the Networks tab.

On the Tasks tab, click Edit Selected Network.

On the Firewall Client tab, select Automatically detect settings, if the client computer should automatically attempt to find the ISA Server computer. Enable Automatic Discovery for Firewall Clients in ISA Server 2000

To enable automatic discovery for Firewall clients for ISA Server 2000, do the following:

In ISA Server Management, click the ISA Server computer name, and then click Client Configuration.

In the details pane, right-click Firewall Client and then click Properties.

On the General tab, select Enable automatic discovery in Firewall Clients.

Create an Option 252 Entry in DHCP

To create an Option 252 entry in DHCP, do the following:

Click Start, point to Programs, point to Administrative Tools, and then click DHCP.

In the console tree, right-click the applicable DHCP server, click Set Predefined Options, and then click Add.

In Name, type WPAD.

In Code, type 252.

In Data type, select String, and then click OK.

In String, type http://Computer_Name:Port/wpad.dat where:

Computer_Name is the fully qualified domain name of the ISA Server computer.

Port is the port number on which automatic discovery

\information is published. You can specify any port number. By default ISA Server publishes automatic discovery information on port 8080.

Right-click Server options, and then click Configure options.

Confirm that the Option 252 check box is selected.

Configure Option 252 for a DHCP Scope

To configure an Option 252 entry for a DCHP scope, do the following:

Click Start, point to Programs, point to Administrative Tools, and then click DHCP. Right-click Scope Options, and then click Configure Options.

Click Advanced, and then in Vendor Class, click Standard Options.

In Available Options, select the 252 Proxy Autodiscovery check box, and then click OK.

Create a WPAD Entry in DNS

To create a WPAD entry in DNS, do the following:

Click Start, point to Programs, point to Administrative Tools, and then click DNS.

In the console tree, right-click the applicable forward lookup zone and click New Alias.

In Alias name, type WPAD.

In Fully qualified name for target host, type the fully qualified domain name (FQDN) of the WPAD

Enable and Configure ISA Server 2004 to Listen for Automatic Discovery Requests

To enable and configure ISA Server 2004 to listen for automatic discovery requests, do the following:

In the console tree of ISA Server Management, click Firewall Policy.

In the details pane, select the applicable network (usually Internal).

On the Tasks tab, click Edit Selected Network.

On the Auto Discovery tab, select Publish automatic discovery information.

Enable and Configure ISA Server 2000 to Listen for Automatic Discovery Requests

To enable and configure ISA Server 2000 to listen for automatic discovery requests, do the following:

In the console tree of ISA Server Management, right-click the ISA Server computer name, and then click Properties.

On the Auto Discovery tab, select the Publish automatic discovery information check box.

In Use this port for automatic discovery requests, type the appropriate port number. Note: If you want more information. so you can visit http://www.iyogibusiness.com/

Answer 2

You can buy windows ISA Server (firewall and Proxy server) OR you can search for one of the many free proxy servers such as squid (don't know if there is a windows version of this particular free proxy but it runs fantastc in Linux with 2000 users on an old 486 :))