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 h2c, h2 – https /TLS proxying ● Demo ● QUESTIONS? 10/12/22 2 Who I am Jean-Frederic Clere Red Hat Years writing JAVA code and server software Tomcat committer since 2001 Doing OpenSource since ● Keep the overhead of h2 in the 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)

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing Windows, Apache is normally run as a service on Windows NT, 2000 and XP, or as a console application on Windows 9x and ME. For details, see Running Apache as a Service and Running Apache as a Console Application restarting Apache on Unix-like systems. Windows NT, 2000 and XP users should see Running Apache as a Service and Windows 9x and ME users should see Running Apache as a Console Application for information on

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing Windows, Apache is normally run as a service on Windows NT, 2000 and XP, or as a console application on Windows 9x and ME. For details, see Running Apache as a Service and Running Apache as a Console Application restarting Apache on Unix-like systems. Windows NT, 2000 and XP users should see Running Apache as a Service and Windows 9x and ME users should see Running Apache as a Console Application for information on

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing Windows, Apache is normally run as a service on Windows NT, 2000 and XP, or as a console application on Windows 9x and ME. For details, see Running Apache as a Service and Running Apache as a Console Application restarting Apache on Unix-like systems. Windows NT, 2000 and XP users should see Running Apache as a Service and Windows 9x and ME users should see Running Apache as a Console Application for information on

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing Windows, Apache is normally run as a service on Windows NT, 2000 and XP, or as a console application on Windows 9x and ME. For details, see Running Apache as a Service and Running Apache as a Console Application restarting Apache on Unix-like systems. Windows NT, 2000 and XP users should see Running Apache as a Service and Windows 9x and ME users should see Running Apache as a Console Application for information on

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing Starting Apache httpd Stopping and Restarting Overview for the impatient Installing on Fedora/CentOS/Red Hat Enterprise Linux sudo yum install httpd sudo systemctl enable httpd sudo systemctl start httpd documentation for platform-specific notes. Installing on Ubuntu/Debian sudo apt install apache2 sudo service apache2 start See Ubuntu's documentation for platform-specific notes. Installing from source Download

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing 27) • Stopping and Restarting (p. 29) Overview for the impatient Installing on Fedora/CentOS/Red Hat Enterprise Linux sudo yum install httpd sudo systemctl enable httpd sudo systemctl start httpd ! ahttps://fedoraproject.org/wiki/Apache HTTP Server Installing on Ubuntu/Debian sudo apt install apache2 sudo service apache2 start ! See Ubuntu’s documentationa for platform-specific notes. ahttps://help.ubuntu.c

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing Windows, Apache is normally run as a service on Windows NT, 2000 and XP, or as a console application on Windows 9x and ME. For details, see Running Apache as a Service and Running Apache as a Console Application restarting Apache on Unix-like systems. Windows NT, 2000 and XP users should see Running Apache as a Service and Windows 9x and ME users should see Running Apache as a Console Application for information on

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing Windows, Apache is normally run as a service on Windows NT, 2000 and XP, or as a console application on Windows 9x and ME. For details, see Running Apache as a Service (p. 235) and Running Apache as a Console restarting Apache on Unix-like systems. Windows NT, 2000 and XP users should see Running Apache as a Service (p. 235) and Windows 9x and ME users should see Running Apache as a Console Application (p. 235)

Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing Documentation > Version 2.4 Starting Apache On Windows, Apache is normally run as a service. For details, see Running Apache as a Service. On Unix, the httpd program is run as a daemon that executes continuously Apache HTTP Server on Unix-like systems. Windows NT, 2000 and XP users should see Running httpd as a Service and Windows 9x and ME users should see Running httpd as a Console Application for information on