Coyote Point Systems Equalizer Spezifikationen PDF herunterladen (Seite 287)

Insert client IP

When this flag is enabled, Equalizer inserts an X-forwarded-for: header

with the client's IP address into all client requests before they are sent to

the server. This flag is disabled by default for HTTP clusters and enabled

by default for HTTPS clusters.

TCP Multiplexing

This selection enables TCP multiplexing for a cluster. TCP multiplexing

must also be enabled on at least one server instance in the server pool

assigned to the cluster (or one of its match rules).

Allow Multibyte Characters

By default, support for extended characters (8-bit ASCII and multibyte

UTF characters) in URIs is disabled. Equalizer returns a 400 Bad Request

error when a request URI contains 8-bit or multibyte characters. To enable

support for 8-bit and multibyte characters in URIs, click this checkbox.

There are potential risks to enabling this option, because it allows

Equalizer to pass requests that violate RFC2396; load-balanced servers

may be running software that is incapable of handling such requests.

Therefore, ensure that your server software is capable of handling URIs

containing extended characters and will not serve as a potential weak

point in your network before you enable extended characters.

Once only

Limits Equalizer to parsing headers (and executing match rules) for only

the first request of any client making multiple requests across a single TCP

connection. This option is off by default: meaning that Equalizer will parse

the headers of every client request.

Ignore case

Applies to L7 clusters and is the global setting to ignore case in match

expressions. You can override this value per cluster and per match rule.

See "Match Rules" on page 317 .

Spoof

When the spoof option is enabled on a cluster, Equalizer uses the client’sIP addressas

the source IP address in allpackets sent to a server in that cluster. Thisoption is

enabled by default.

When spoof is enabled, allserver responses to client requeststhat came through the

Equalizer cluster IP address must be routed by the server backto the client through

Equalizer. In many cases, the easiest way to do this is to set the default gateway on the

server with a server instance in a server pool to Equalizer’s IP address on the server

VLAN. If this is not possible, you can establish static routes on the server to send

responsesto specific client IP addresses to Equalizer’sIP addresson the VLAN.

If you disable spoof, the server receiving the request will see Equalizer’s IP address as

the client address because the TCP connection to the client isterminated when the

request is routed. The server will therefore send its response backto Equalizer’s IP

address. Disabling the spoof option enables Source Network Address Translation

(SNAT).

Compression (E650GX Only)

When this option is enabled, Equalizer automatically detects requests to

the cluster from compression-capable browser clients and performs GZIP

compression on all cluster responses sent to that client. This disable -

Disable this cluster. The cluster IP address will not accept requests when

this flag is enabled.

Rewrite Redirects (HTTPS

only-not shown above)

When enabled, forces Equalizer to pass responses from an HTTPS

cluster’s servers without rewriting them. In the typical Equalizer setup,

you configure servers in an HTTPS cluster to listen and respond using

HTTP; Equalizer communicates with the clients using SSL. If a server

sends an HTTP redirect using the Location: header, this URL most likely

will not include the https: protocol. Equalizer rewrites responses from the

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Equalizer Administration Guide

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