Option

Description (Continued)

 

 

FTP cached

Specifies how long the appliance will keep FTP objects in the

objects expire

cache. You can specify from 15 minutes to two weeks.

 

 

Internet

Configures the appliance to treat Microsoft Internet Explorer

Explorer

requests more conservatively, providing fresher content at the

requests force

cost of serving fewer objects from the cache according to the

a check with

following options:

the origin

never: never force a freshness check with the origin server

server

for IMS revalidation requests: only force a freshness check

 

 

for IMS (If Modified Since) revalidation requests

 

always: always force a freshness check with the origin

 

server

 

Certain versions of Microsoft Internet Explorer do not request

 

cache reloads from reverse proxies and transparent caches

 

when the user presses the browser Refresh button. This can

 

prevent content from being loaded directly from the origin

 

servers.

 

 

Chapter 4 Configuring the Appliance

37

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Intel 1520 manual For IMS If Modified Since revalidation requests