In the console tree of ISA Server Management, click
Cache.
In the details pane, click the Cache Rules tab and
select the applicable cache rule.
On the Tasks tab, click Edit Selected Rule.
On the FTP tab, select the Enable FTP caching
check box.
To specify how long the FTP objects should remain in the cache,
in Time-to-Live for FTP objects, type a number. Select a
time unit from the drop-down list box: Seconds,
Minutes, Hours, Days, or Weeks.
Notes
To open ISA Server Management, click Start, point to
All Programs, point to Microsoft ISA Server, and then
click ISA Server Management.
For ISA Server 2006 Enterprise Edition, expand
Microsoft Internet Security and Acceleration
Server 2006, expand Arrays, expand
Array_Name, expand Configuration, and then
click Cache.
For ISA Server 2006 Standard Edition, expand Microsoft
Internet Security and Acceleration Server 2006, expand
Server_Name, expand Configuration, and then
click Cache.
Important
To reset FTP expiration policy to equal importance, click
Restore Defaults.
When you disable FTP caching for all cache rules, ISA Server
allocates cache memory. To stop ISA Server from allocating memory,
set the cache size to 0.
Get latest ISA Server
content at ISA Server
Guidance(http://www.microsoft.com/).
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