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C H A P T E R 2 HP Traffic Director Server Appliances User Guide

Each server listed for fulfillment of a RICH_HTTP service can be

configured to serve any number of specific rich expressions.

Applicable expressions are listed below:

• File type expressions, such as *.gif, or */index.html

• Path expressions, such as /home/*, or /home/images/*, or /home/

images/a*.

• Unique file expressions, such as /index.html

• Wildcard expression, such as *.

• Negation expressions, such as !*.gif or !*/index.html

RICH expressions are managed with the following commands:

config policygroup <name> service <name> server

<name> port <port> expression create

<expression>, and

config policygroup <name> service <name> server

<name> port <port> expression delete

Order of Expressions (not available on the

SA7200)

NOTE: The “*” and “!”

are allowed in

expressions, but they can

only exist at the

beginning or end of the

expression. Also, a

positive expression is

required after a not (!)

expression, otherwise the

(!) expression has no

effect.

When using expressions in Layer 7 (RICH) operations, the order of

expressions is significant only when the "not" (!) operator is used.

Expressions are described below.

Expression Yields

!*.gif;*

All non-GIF files

*;!*.gif

All files, because after specifying “all” (*), the

!*.gif expression is never reached

!*.html;/home/*

Matches all requests of the form “/home/*”

except HTML files

/home/*;!*.html

Matches all files of the form “/home/*.” The

!*.html has no effect.

!/home/*

No matches

!/home/*;*

All matches except ones starting with "/home"

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