HP P4535A - Web Cache Server Appliance Administrator's Manual page 27

Chapter 3
Alternates are identified by header information. You can configure Traffic Server to cache all alternates
according to a particular header. For example, if you tell Traffic Server to vary on the
Traffic Server caches all the different user-agent versions of documents it encounters. You configure the
caching of alternates in the Variable Content section of the Cache page in Traffic Manager's Configure
mode.
To cache or not to cache?
NNTP You can limit article caching to specific news groups. See
page
FTP You can specify never-cache rules for specific types of FTP documents in the
cache.config
HTTP Traffic Server responds to caching directives from clients and origin servers, as well as
configurable options in Traffic Manager and the
The following table lists the HTTP caching directives that Traffic Server follows.
Directive source
administration
options
client
origin server
.
18.
file. See cache.config‚ on page
Caching directives
Traffic Server has the following administration options for caching:
Configure Traffic Server not to cache objects with URLs containing the
following:
?
;
/cgi
end in
.asp
Configure Traffic Server not to cache objects served in response to the Cookie:
header.
Use never-cache rules in the cache.config file. Refer to
page 162.
Traffic Server does not cache objects with the following request headers. Note that
some of these directives can be overridden by Traffic Server administration options.
Cache-Control: no-store header
Cookie: header
Authorization: header
Traffic Server does not cache objects with the following response headers. Note that
some of these directives can be overridden by Traffic Server administration options.
Cache-Control: no-store
www-Authenticate: header
Set-Cookie: header
Cache-Control: no-cache header
Pragma: no-cache header
Expires: header with value of 0 (zero) or a past date
Web Proxy Caching
User-Agent
Blocking particular groups‚ on
162.
file.
cache.config
cache.config‚ on
header,
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