HP Cache Server Appliance Administrator Guide

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Appendix D Configuration Files
Format
Each line in the cache.config file contains a caching rule. Traffic Server recognizes three space-delimited
tags:
primary destination=value secondary specifier=value action=value
The following table lists the possible primary destinations and their allowed values:
The secondary specifiers are optional in the
cache.config file. The following table lists the possible
secondary specifiers and their allowed values:
The following table lists the possible actions and their allowed values:
NOTE You can use more than one secondary specifier in a rule. However, you cannot repeat a
secondary specifier.
Primary Destination Allowed
dest_domain
Requested domain name
dest_host
Requested hostname
dest_ip
Requested IP address
url_regex
Regular expression to be found in a URL
Secondary Specifier Allowed Value
time
A time range, such as 08:00-14:00
src_ip
TheIPaddressoftheclient
prefix
A prefix in the path part of a URL
suffix
A file suffix in the URL
port
A requested URL port
method
A request URL method; one of the following:
• get
• post
• put
• trace
scheme
A request URL protocol; one of the following:
• HTTP
• FTP
Action Value
action
never-cache
ignore-no-cache
pin-in-cache
Enter the amount of time you want to keep the object(s) in the cache.
Following time formats are allowed:
• h for hours, e.g. 10h
• m for minutes, e.g. 5m
• s for seconds, e.g. 20s
• mixed units, e.g. 1h15m20s
revalidate
Enter the amount of time you want to consider the object(s) fresh. Use the
same time formats as
pin-in-cache.