Coyote Point Systems Equalizer Especificaciones descargar pdf (Pagina 307)

once only enabled once only disabled

always

enabled

Equalizer always inserts a cookie into the

first

set of

response headerson a connection

only

. The cookie is

inserted regardlessof whether the server included one

in the response.

Subsequent responses on the same connection are

forwarded to the client

unchanged

by Equalizer.

Equalizer inserts its own cookie into

all

server responses on a connection.

The cookie is inserted regardlessof

whether the server included one in

the response.

always

disabled

If the

first

server response on a connection already has

a server cookie in it, Equalizer inserts its own cookie into

the

first

set of response headers on the connection. If

the response has no cookie in it, Equalizer does

not

insert one of its own.

Subsequent responses on the same connection are

forwarded to the client

unchanged

by Equalizer.

If the

first

server response on a

connection already has a server

cookie in it, Equalizer inserts its own

cookie into the

first

set of response

headers on the connection.

Equalizer will insert a cookie into

subsequent responses on the same

connection if:

they do not contain a valid cookie

the cookie generation has

changed

the server in the cookie has the

quiesce flag enabled

Note - the cluster parameters cookie path, cookie age, cookie generation, and cookie domain specify

cookie content for the cluster. If any of these parameters are updated, this changes the information used in

the cookies that Equalizer inserts into server responses.

Enabling Once Only and Compression

Enabling both the once only and compress options is not allowed by the GUI. These two options are not compatible,

since setting them both would mean that only the first response in a connection would be compressed and not the

remainder of the responses, which would likely cause client errors.

Enabling Once Only and No Header Rewrite for HTTPS

In a Layer 7 HTTPS cluster, clients connect to the cluster IP using HTTPS connections. Equalizer terminates the

HTTPS connection and communicates with the server pool in the cluster using the HTTP protocol. By default,

Equalizer examines server responses for http://URLs and rewrites them as https:// URLs, so that these

URLs work properly on the client. If, for example, a server sends an HTTP redirect using the Location: header,

this URL most likely will include the http:// protocol. Equalizer rewrites this response so that the URL uses

https://.

For server connections that contain multiple server responses, the setting of the once only flag determines whether

Location: headers in all server responses are rewritten. This is shown in the table below.

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Equalizer Administration Guide

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