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Apache JServ Protocol
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<h2 id="history">History</h2> <p>Alexei Kosut originally developed the Apache JServ Protocol in July 1997<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a> but the version 1.0 specification was published later on July 29, 1998.<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a> He also wrote the first implementations of it in the same month, with the releases of the Apache JServ servlet engine 0.9 and the Apache mod_jserv 0.9a (released on July 30, 1997).<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a> </p><p>The specification was updated to version 1.1 on September 9, 1998.<a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a> Also in 1998, a revamped protocol was created and published in specification versions 2<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a> and 2.1,<a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a> however it was never adopted. </p><p>In 1999, <a href="/facts/Sun_Microsystems/VJ9EzEFd">Sun Microsystems</a> donated their JavaServer Web Development Kit (JSWDK; codenamed Tomcat) reference implementation to <a href="/facts/Apache_Software_Foundation/Xl9Tt9lE">Apache Software Foundation</a>. This became <a href="/facts/Apache_Tomcat/psmVfM2B">Apache Tomcat</a> version 3.0, the successor to JSWDK 2.1, and derailed further development of Apache JServ servlet engine and AJP towards support of <a href="/facts/Java_servlet/hf5LQVq1">Java servlet</a> API version 2.1.<a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a> </p><p>The current specification remains at version 1.3,<a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a> however there is a published extension proposal<a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a> as well as an archived experimental 1.4 proposal.<a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a> </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Web_Services_for_Remote_Portlets/Q9Wj0nz7">Web Services for Remote Portlets</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html">The Apache Tomcat Connector - AJP Protocol Reference</a> AJPv13</li> <li><a href="https://tomcat.apache.org/tomcat-3.3-doc/AJPv13.html">Apache JServ Protocol version 1.3</a> Dan Milstein, December 2000.</li> <li><a href="http://www.boncode.net/boncode-connector">"BonCode Connector"</a>. <i>BonCode</i>. 2016-08-16. Retrieved 2017-10-09. BonCode IIS implementation of AJP</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"AJP File Read/Inclusion in Apache Tomcat (CVE-2020-1938) and Undertow (CVE-2020-1745)". Red Hat Customer Portal. Retrieved 1 March 2020. <a href="https://access.redhat.com/solutions/4851251" target="_blank">https://access.redhat.com/solutions/4851251</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"BonCode Apache Tomcat AJP 1.3 Connector". boncode.net. Retrieved 9 October 2017. <a href="http://boncode.net/connector/webdocs/Tomcat_Connector.htm" target="_blank">http://boncode.net/connector/webdocs/Tomcat_Connector.htm</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"NativeSPAttributeAccess". Shibboleth Consortium. Retrieved 13 November 2017. <a href="https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPAttributeAccess" target="_blank">https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPAttributeAccess</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Apache Module mod_proxy_ajp". Apache HTTP Server Project. Retrieved 13 November 2017. <a href="https://httpd.apache.org/docs/2.4/mod/mod_proxy_ajp.html" target="_blank">https://httpd.apache.org/docs/2.4/mod/mod_proxy_ajp.html</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"Docs - Lighttpd - lighty labs". redmine.lighttpd.net. Retrieved 14 July 2021. <a href="https://redmine.lighttpd.net/projects/lighttpd/wiki/Docs_ModAJP13" target="_blank">https://redmine.lighttpd.net/projects/lighttpd/wiki/Docs_ModAJP13</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>Yao(姚伟斌), Weibin (6 October 2017). "nginx_ajp_module: support AJP protocol proxy with Nginx". Retrieved 9 October 2017 – via GitHub. <a href="https://github.com/yaoweibin/nginx_ajp_module" target="_blank">https://github.com/yaoweibin/nginx_ajp_module</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"AJP". Grizzly 2.3 User's Guide. java.net. Retrieved 2013-04-29. <a href="https://grizzly.java.net/nonav/docs/docbkx2.3/html/ajp.html" target="_blank">https://grizzly.java.net/nonav/docs/docbkx2.3/html/ajp.html</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>"BonCode Apache Tomcat AJP 1.3 Connector". boncode.net. Retrieved 9 October 2017. <a href="http://boncode.net/connector/webdocs/Tomcat_Connector.htm" target="_blank">http://boncode.net/connector/webdocs/Tomcat_Connector.htm</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>Barbieri, Federico; Fumagalli, Pierpaolo; Kluft, Ian; Korthof, Ed; Mazzocchi, Stefano; Pool, Martin (June 30, 1998). "Apache JServ Protocol Version 2.1". Java Apache Project. Archived from the original on 2003-08-04. <a href="https://web.archive.org/web/20030804213216/http://java.apache.org/jserv/protocol/AJPv21.html" target="_blank">https://web.archive.org/web/20030804213216/http://java.apache.org/jserv/protocol/AJPv21.html</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>Kosut, Alexei (July 29, 1998). "Apache JServ Protocol Version 1.0". Java Apache Project. Archived from the original on 2003-04-15. <a href="https://web.archive.org/web/20030415202643/http://java.apache.org/jserv/protocol/AJPv1.html" target="_blank">https://web.archive.org/web/20030415202643/http://java.apache.org/jserv/protocol/AJPv1.html</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>"History of Changes - Apache JServ Project". Java Apache Project. Archived from the original on 2003-04-16. <a href="https://web.archive.org/web/20030416024540/http://java.apache.org/jserv/changes.html" target="_blank">https://web.archive.org/web/20030416024540/http://java.apache.org/jserv/changes.html</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>Kosut, Alexei (September 9, 1998). "Apache JServ Protocol Version 1.1". Java Apache Project. Archived from the original on 2003-08-04. <a href="https://web.archive.org/web/20030804080332/http://java.apache.org/jserv/protocol/AJPv11.html" target="_blank">https://web.archive.org/web/20030804080332/http://java.apache.org/jserv/protocol/AJPv11.html</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>Kluft, Ian; Korthof, Ed; Mazzocchi, Stefano (February 15, 1998). "Apache JServ Protocol Version 2". Java Apache Project. Archived from the original on 2003-08-05. <a href="https://web.archive.org/web/20030805035548/http://java.apache.org/jserv/protocol/AJPv2.html" target="_blank">https://web.archive.org/web/20030805035548/http://java.apache.org/jserv/protocol/AJPv2.html</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>Barbieri, Federico; Fumagalli, Pierpaolo; Kluft, Ian; Korthof, Ed; Mazzocchi, Stefano; Pool, Martin (June 30, 1998). "Apache JServ Protocol Version 2.1". Java Apache Project. Archived from the original on 2003-08-04. <a href="https://web.archive.org/web/20030804213216/http://java.apache.org/jserv/protocol/AJPv21.html" target="_blank">https://web.archive.org/web/20030804213216/http://java.apache.org/jserv/protocol/AJPv21.html</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>"The Origin Story of Tomcat". TechNotif. Retrieved 2018-07-25. <a href="https://technotif.com/the-origin-story-of-tomcat/" target="_blank">https://technotif.com/the-origin-story-of-tomcat/</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>"AJP Protocol Reference - AJPv13". Apache Tomcat. Retrieved 2016-08-20. <a href="https://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html" target="_blank">https://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> <li id="fn:17"><p>"AJP Protocol Reference - AJPv13 Extension Proposal". Apache Tomcat. Retrieved 2016-08-20. <a href="https://tomcat.apache.org/connectors-doc/ajp/ajpv13ext.html" target="_blank">https://tomcat.apache.org/connectors-doc/ajp/ajpv13ext.html</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></p></li> <li id="fn:18"><p>"AJPv14 Proposal". Apache Tomcat. Retrieved 2019-05-06. <a href="https://archive.apache.org/dist/tomcat/tomcat-connectors/jk2/v2.0.0/doc/common/AJPv14-proposal.html" target="_blank">https://archive.apache.org/dist/tomcat/tomcat-connectors/jk2/v2.0.0/doc/common/AJPv14-proposal.html</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></p></li> </ol>