2. Configuring Proxy Settings for Mobile Connections
As with connections themselves, proxy server settings can be set
manually or automatically. With manual configuration, you need to
configure each property step by step. With automatic
configuration, the computer attempts to detect proxy server settings
and then configure the appropriate options, or the computer reads a
configuration script to use in configuring the proxy.
Note
Proxy
settings can be configured for multiple systems through Group Policy.
If you elect not to configure proxy settings through Group Policy, you
can configure them on a per-connection basis, as discussed in this
section.
Configuration scripts can be stored in a file on the local computer
or at an Internet address. Using configuration scripts can save a lot of
time, especially when you consider that each connection you create is
configured separately. Further, because VPN connections are established
on top of an existing setting, the proxy settings for the VPN can be
different from those set in the original connection.
To use automatic proxy configuration for a connection, complete the following steps:
-
In Control Panel, tap or click Network And Internet. In Network And
Internet, tap or click Internet Options. In the Internet Properties
dialog box, tap or click the Connections tab. -
In the Dial-Up And Virtual Private Network Settings list, select the
dial-up connection that you want to configure, and then tap or click
Settings. This displays a Settings dialog box similar to the one shown
in Figure 2. -
To attempt to detect proxy settings automatically when establishing the connection, select Automatically Detect Settings. -
To use a configuration script, select Use Automatic Configuration
Script, and then type the file path or URL for the script. With file
paths, you can use environment variables, such as
%UserProfile%\PROXY.VBS. With URLs, be sure to use the computer URL,
such as http://proxy.microsoft.com/proxy.vbs.
-
To ensure that only automatic settings are used, clear the Use A Proxy Server For This Connection check box. -
Tap or click OK twice.
To use manual proxy configuration, complete the following steps:
-
In Control Panel, tap or click Network And Internet. In Network And
Internet, tap or click Internet Options. In the Internet Properties
dialog box, tap or click the Connections tab. -
In the Dial-Up And Virtual Private Network Settings list, select the
dial-up connection you want to configure, and then tap or click
Settings. -
Clear the Automatically Detect Settings and Use Automatic Configuration Script check boxes if they are selected. -
Select Use A Proxy Server For This Connection. The Bypass Proxy
Server For Local Addresses check box is not selected by default. In most
cases, however, you won’t want to use a proxy for requests made to
servers on the same network segment, so you’ll want to select Bypass
Proxy Server For Local Addresses as well. It is important to note that
if Bypass Proxy Server For Local Addresses is not selected, users might
need additional permissions to access intranet servers through your
proxy servers. -
Tap or click Advanced to display the Proxy Settings dialog box, as shown in Figure 3.
-
Using the text boxes in the Servers area, set the IP address for proxies. You’ll find the following two columns of text boxes:
-
Proxy Address To Use
Sets the IP address
of the related proxy server or servers. Enter the IP address for each
service. If multiple proxies are configured for a particular service,
type the IP address for each proxy server in the order in which you want
the web client to attempt to use them. Each address must be separated
by a semicolon. If a proxy isn’t configured for a service, do not fill
in the related text box. -
Port Sets the port
number on which the proxy server responds to requests. Most proxies
respond to port 80 for all requests. That said, the standard ports are
port 80 for Hypertext Transfer Protocol (HTTP), port 443 for Secure
Sockets Layer (SSL; listed as Secure), port 21 for File Transfer
Protocol (FTP), and port 1081 for Socks. Check with your organization’s
web administrator for the proper settings.
-
The Use The Same Proxy Server For All Protocols check box enables you
to use the same IP address and port settings for the HTTP, SSL, FTP,
and Socks services. You have the following options:
-
If your organization has one proxy server that handles all requests,
select the Use The Same Proxy Server For All Protocols check box. Type
the IP address that you want to use and the port number on which the
server responds. -
If you want to use a unique proxy server or servers for each type of
service, clear the Use The Same Proxy Server For All Protocols check
box, and then enter the necessary IP addresses and port numbers in the
text boxes provided.
-
If your network has multiple segments or there are specific servers
that shouldn’t use proxies, enter the appropriate IP addresses or IP
address ranges in the Exceptions list. Each entry must be separated by a
semicolon. The asterisk (*) character can be used as a wildcard
character to specify an address range of 0 through 255, such as
192.*.*.*, 192.168.*.*, or 192.168.10.*. -
Tap or click OK three times.
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