48
C
HAPTER
1: W
EB
C
ACHING
C
ONCEPTS
AND
D
EPLOYMENT
8
Click
OK
.
To manually configure Netscape Navigator 4.5 or 6:
1
Open Netscape Navigator.
2
From the
Edit
menu, click
Preferences
.
3
Click the
Advanced
category and click
Proxies
.
4
Select
Manual Proxy Configuration
.
5
Click
View
.
6
Enter the URL or location of the Webcache in the
HTTP
,
Security
and
FTP
fields.
7
Enter a caching port number on which the Webcache is listening in each
Port
field. The default port number is
8080
.
8
Click
OK
.
Proxy Auto
Configuration (PAC)
Files
You can use a Proxy Auto Configuration (PAC) file to configure the Web
browser on each client machine. PAC files allow you to create
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 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.
For further information, see
“Creating a Proxy Auto-configuration File”
on
page 115
.
You can only use a PAC file to configure the Web browsers on client
machines when the Webcache is operating in Proxy cache mode.
PAC Files and Load Balancing
You can use a PAC file to load balance Web requests from client machines
between up to four Webcaches in your network, achieving higher
performance and resiliency. If one Webcache fails, Web requests will
automatically be sent to the other available Webcaches.
dua1611-5aaa04.book Page 48 Friday, November 29, 2002 8:56 PM
Summary of Contents for SuperStack 3 WEBCACHE 1000
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Page 348: ...348 GLOSSARY dua1611 5aaa04 book Page 348 Friday November 29 2002 8 56 PM ...