The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

17.2.1 About the HAProxy Configuration File

The /etc/haproxy/haproxy.cfg configuration file is divided into the following sections:

global

Defines global settings such as the syslog facility and level to use for logging, the maximum number of concurrent connections allowed, and how many processes to start in daemon mode.

defaults

Defines default settings for subsequent sections.

listen

Defines a complete proxy, implicitly including the frontend and backend components.

frontend

Defines the ports that accept client connections.

backend

Defines the servers to which the proxy forwards client connections.

For examples of how to configure HAProxy, see: