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l Must be enclosed in single or double quotes if it contains a space character.
l Any single or double quotes included within the string must be preceded by the backslash character (\).
Note -In ACV Query strings character escapes such as “\n” for new-line, “\r” for carriage return and “\t for Tab are
supported. "\r" and "\n" must be manually inserted at the end of all HTTP and HTTPS ACV probes. The system does
not do this manually at Layer 7.
For ACV Response strings Regular Expression matching is supported.
Setting the ACV Query and Response Strings in the GUI
Enter the following values on the Server Pool > Configuration > LB Policy> screen:
If the page that is returned contains the correct response string (in the first 1024 characters, including headers) the
server is marked “UP”; if ALL OK were not present, the server is marked “DOWN”.
The response string should be text that appears only in a valid response. This string is also case-sensitive. An
example of a poorly chosen string would be HTML, since most web servers automatically generate error pages
that contain valid HTML.
Setting the ACV Query and Response Strings in the CLI
The following commands are all examples of valid ACV string commands:
eqcli > srvpool srvpool_name acvr Up
eqcli > srvpool srvpool_name acvr "This is a response string with spaces."
eqcli > srvpool srvpool_name acvr "This is a response string with \"quotes\"."
Testing ACV Probes
You can test the ACV probe configuration in the CLI by entering the following:
eqcli > srvpool name test acv [server_name]
If the server_name is specified, only that server is probed. If server_name is omitted, all servers in the server
pool are probed. Results are returned for each server by name.
Configuring UDP, TCP, and ACV Parameters
UDP, TCP, and ACV probe parameters are configured on all server pools and apply only to the server instances
(and thus the servers) within a server pool:
Copyright © 2013 Coyote Point Systems. A subsidiary of Fortinet, Inc.
All Rights Reserved.
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