Intel 1520 User Manual

Page of 176
Chapter 5 Using the Command-Line Interface
79
Configuring caching rules
The appliance uses caching rules to determine how a particular group of URL 
addresses should be cached. You can add, delete, and view caching rules. 
Caching rules can specify:
✔ Whether to cache objects
✔ How long to keep (pin) particular objects in the cache
✔ How long to consider cached objects as fresh
✔ Whether to ignore no-cache directories from the server
▼ Adding caching rules
1
Select the config menu, and press Enter. 
2
Select cache, and press Enter. 
Set FTP objects expiry
FTP objects carry no time stamp or date 
information. The appliance considers them 
fresh for the amount of time specified here. 
This "freshness" time is counted from the 
time the object arrives in the cache.
Enter the time in seconds and press Enter. 
After pressing Enter, press CTRL-X to save 
your changes and return to the previous 
screen.
Internet Explorer options
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 
behavior can prevent users from manually 
reloading content directly from the origin 
servers. You can configure the appliance to 
treat Microsoft Internet Explorer requests 
more conservatively. Doing so provides 
fresher content at the cost of serving fewer 
documents from cache. 
Internet Explorer requests force a check with 
the origin server. 
Select from one of the following options and 
press Enter. After pressing Enter press 
CTRL-X to save your changes and return to 
the previous screen.
Never 
For IMS Revalidation Requests 
Always 
Option (Continued)
Description (Continued)