Coyote Point Systems Equalizer Spezifikationen PDF herunterladen (Seite 328)

100

101

Match Rules

Match

rules

are defined in the file

/var/eq/eq.conf

with the definition of the cluster to which the match rule applies.

A match rule as it appears in

eq.conf

looks like the following example:

match ma01 {

client_ip("10.0.0.19")

} then {

flags =!spoof;

srvpool = sv_01;

}

In this example (the match rule is named “ma01”), the match function, client_ip, has an argument that matches all

requests from IP address 10.0.0.19, which are all sent to server sv_01. Additionally, this rule disables the spoof

flag (that is, when the connection is made to the server, the server sees a connection to the Equalizer, not to the

client). This is displayed as follows:

The Expression field shows the expression that is evaluated against the incoming request. If the expression

evaluates to

true

, the Server Pool field specifies the "pool" of servers that will be used to satisfy the incoming

request, as well as the options that will be set for the request.

Refer to "Server Pools and Server Instances" on page 229

Match Rule Expression Examples

A match rule

expression

must be specified in double quotes, so any quotes used in a function to delineate strings

must be escaped with a backslash character (\), as in this example that matches all client requests with a source

IP on the 10.10.10/24 network:

expression “client_ip(\“10.10.10/24\”)”

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