Proxing to tomcat with httpd Jean-Frederic Clere Principal Software Engineer / Red Hat What I will cover ● Proxy what and why. ● Protocols – AJP – HTTP/HTTPS (1.1) – HTTP/2 (H2 and H2C) – Others reverse proxy – ● Supported by httpd 11 10/12/22 Demultiplexing h2 in proxy ● Keep the back-end unchanged ● Keep the overhead of h2 proxy 12 10/12/22 Other proxies ● HAProxy (in the cloud / openshift for example) ● mod_cluster (httpd dynamic load balancer) ● Undertow proxy (jboss servlet container) ● Ingress (in kubernetes, well

0.1 error.log - AH01797: client denied by server configuration: /var/www/html/server-status Why httpd denies access to servers-status even if the configuration seems to allow it? Because mod_access_compat per-module LogLevel configuration. mod_proxy_scgi: The default setting for PATH_INFO has changed from httpd 2.2, and some web applications will no longer operate properly with the new PATH_INFO setting. The configuration to 2.4 authorization directives. Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. Invalid command 'AddOutputFilterByType'

0.1 error.log - AH01797: client denied by server configuration: /var/www/html/server-status Why httpd denies access to servers-status even if the configuration seems to allow it? Because mod_access_compat per-module LogLevel configuration. mod_proxy_scgi: The default setting for PATH_INFO has changed from httpd 2.2, and some web applications will no longer operate properly with the new PATH_INFO setting. The configuration to 2.4 authorization directives. Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. Invalid command 'AddOutputFilterByType'

0.1 error.log - AH01797: client denied by server configuration: /var/www/html/server-status Why httpd denies access to servers-status even if the configuration seems to allow it? Because mod_access_compat per-module LogLevel configuration. mod_proxy_scgi: The default setting for PATH_INFO has changed from httpd 2.2, and some web applications will no longer operate properly with the new PATH_INFO setting. The configuration to 2.4 authorization directives. Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. Invalid command 'AddOutputFilterByType'

configuration to 2.4 authorization directives. Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. Invalid command 'AddOutputFilterByType' without interfering with authentication or authorization. mod_lua Embeds the Lua language into httpd, for configuration and small business logic functions. (Experimental) mod_log_debug Allows the addition pre_config and open_logs hooks. It also runs before the test_config hook when the -t option is passed to httpd. The check_config hook allows modules to review interdependent configuration directive values and

should edit httpd.conf to include the relevant mod_ssl directives and then use apachectl start to start the server. An example configuration to activate mod_ssl has been included in conf/extra/httpd-ssl.conf event MPMs now allow httpd to be shutdown gracefully via the graceful-stop signal. The GracefulShutdownTimeout directive has been added to specify an optional timeout, after which httpd will terminate regardless Library Updated Version 5.0 of the Perl Compatible Regular Expression Library (PCRE) is now included. httpd can be configured to use a system installation of PCRE by passing the --with-pcre flag to configure

should edit httpd.conf to include the relevant mod_ssl directives and then use apachectl start to start the server. An example configuration to activate mod_ssl has been included in conf/extra/httpd-ssl.conf event MPMs now allow httpd to be shutdown gracefully via the graceful-stop signal. The GracefulShutdownTimeout directive has been added to specify an optional timeout, after which httpd will terminate regardless Library Updated Version 5.0 of the Perl Compatible Regular Expression Library (PCRE) is now included. httpd can be configured to use a system installation of PCRE by passing the --with-pcre flag to configure

should edit httpd.conf to include the relevant mod_ssl directives and then use apachectl start to start the server. An example configuration to activate mod_ssl has been included in conf/extra/httpd-ssl.conf event MPMs now allow httpd to be shutdown gracefully via the graceful-stop signal. The GracefulShutdownTimeout directive has been added to specify an optional timeout, after which httpd will terminate regardless Library Updated Version 5.0 of the Perl Compatible Regular Expression Library (PCRE) is now included. httpd can be configured to use a system installation of PCRE by passing the --with-pcre flag to configure

should edit httpd.conf to include the relevant mod_ssl directives and then use apachectl start to start the server. An example configuration to activate mod_ssl has been included in conf/extra/httpd-ssl.conf event MPMs now allow httpd to be shutdown gracefully via the graceful-stop signal. The GracefulShutdownTimeout directive has been added to specify an optional timeout, after which httpd will terminate regardless Library Updated Version 5.0 of the Perl Compatible Regular Expression Library (PCRE) is now included. httpd can be configured to use a system installation of PCRE by passing the --with-pcre flag to configure

per-module LogLevel configuration. mod_proxy_scgi: The default setting for PATH_INFO has changed from httpd 2.2, and some web applications will no longer operate properly with the new PATH_INFO setting. The configuration to 2.4 authorization directives. Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. Invalid command 'AddOutputFilterByType' without interfering with authentication or authorization. mod_lua Embeds the Lua language into httpd, for configuration and small business logic functions. (Experimental) mod_log_debug Allows the addition