3Com Webcache 1000 (3C16115) manual Proxy Auto, File Scripts, Select Manual Proxy Configuration

50CHAPTER 3: CONFIGURING WEB BROWSERS

You can view the port number for the Webcache by:

aLogging into the Web Interface.

bSelecting Device View -> System -> Caching -> Set Caching Mode.

8Click OK.

To manually configure Netscape Navigator 4.5:

1Open Netscape Navigator.

2From the Edit menu, click Preferences.

3Click the Advanced category and click Proxies.

4Select Manual Proxy Configuration.

5Click View.

6Enter the URL or location of the Webcache in the HTTP, Security and FTP fields.

7Enter the caching port number on which the Webcache is listening in each Port field. The default port number is 8080.

8Click OK.

3Com recommends that you configure the client machine that you use to manage the Webcache so that it does not use the Webcache as a proxy server. In Internet Explorer, select Tools -> Internet Options -> Connections -> LAN Settings and disable Use a Proxy Server. In Netscape, select Edit -> Preferences -> Advanced -> Proxies and select Direct Connection to the Internet.

Proxy Auto	You can use a Proxy Auto Configuration (PAC) file to configure the Web
Configuration (PAC) browser on each client machine. PAC files allow you to create
File Scripts	configuration rules that determine how the Web browser operates when
	the Webcache is being deployed as a Proxy cache. The PAC file can be

stored either on the Webcache or a network server, and the Web browser is set to read the PAC file when it is opened.

The main disadvantage of PAC files is that the PAC file is read once when the Web browser is first opened, and then executed within the browser for every object within every Web page visited. This can cause a perceived response time degradation, although the performance degradation is likely to be small.