Httpd Proxy

External

• https://httpd.apache.org/docs/current/mod/mod_proxy.html#proxy

Internal

• mod_proxy Concepts - <Proxy> Control Block
• mod_proxy Configuration

Overview

Container directive for directives applied to proxied resources. Directives placed in <Proxy> sections apply only to matching proxied content.

Matching

A backend URL matches the configuration section of a <Proxy> container directive if it begins with the wildcard-url string, even if the last path segment in the directive only matches a prefix of the backend URL. For example <Proxy "http://example.com/a"> matches "http://example.com/a/b". This behavior differs from the behavior of <Location>.

Syntax

<Proxy wildcard-url>
   ...
</Proxy>

<Proxy> and Balancer Workers

If the Proxy directive scheme starts with "balancer://", the directive defines the members of a virtual worker that balances amongst its members. For more details see:

mod_proxy Concepts - Balancer Workers

Balancer Configuration Reference

lbmethod

Defines the load balancing scheduler method to use. Available options:

• byrequests
• bytraffic
• bybusyness

The default value is "byrequests".

The load balancing dynamics is explained here: Httpd_mod_proxy_Concepts#mod_proxy Concepts - Load_Balancing.

maxattempts

The maximum number of failover attempts before giving up. The default is equal with the number of members minus 1, or 1 if there is a single member. The load balancing dynamics is explained here: Httpd_mod_proxy_Concepts#mod_proxy Concepts - Load_Balancing.