Apache JServ Protocol

The Apache JServ Protocol (AJP) is a binary protocol that forwards incoming requests from a web server to an application server behind it . It also supports certain monitoring capabilities, e.g. B. it can ping the application server . AJP is typically used in load balancing environments in which one or more front-end servers forward requests to one or more application servers. Routing mechanisms ensure that the requests that belong to a session end up on the correct server.

AJP is implemented in the Apache HTTP Server as a mod_jk or mod_proxy_ajp module.

Apache Tomcat and Jetty as well as Undertow support AJP.

Web links

• http://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html
• http://tomcat.apache.org/tomcat-3.3-doc/AJPv13.html
• http://tomcat.apache.org/tomcat-5.5-doc/config/ajp.html
• http://httpd.apache.org/docs/2.2/mod/mod_proxy.html
• http://httpd.apache.org/docs/2.2/mod/mod_proxy_ajp.html
• http://homepage.mac.com/andrewlindesay/le/page_lestuff.html ( Memento from February 22, 2007 in the Internet Archive )
• http://undertow.io/undertow-docs/undertow-docs-1.2.0/#listeners