Reverse Proxying Tomcat Web Applications Behind Apache - apache

Question

I would like to create a configuration for my virtual host in my Ubuntu 14.04 LTS Profile, so I modified the file /etc/apache2/sites-available/mysite.com.conf as follows:
# domain: mysite.com
# public: /var/www/mysite.com/public_html/
<VirtualHost *:80>
# Admin email, Server Name (domain name), and any aliases
ServerAdmin webmaster#mysite.com
ServerName www.mysite.com
ServerAlias mysite.com
ProxyPass / http://139.333.222.107:8080/devices
ProxyPassReverse / http://139.333.222.107:8080/devices
# Index file and Document Root (where the public files are located)
DirectoryIndex index.html index.php
DocumentRoot /var/www/mysite.com/public_html
# Log file locations
LogLevel warn
ErrorLog /var/www/mysite.com/log/error.log
CustomLog /var/www/mysite.com/log/access.log combined
</VirtualHost>
But when I run sudo service apache2 restart , I got this error:
* Restarting web server apache2 [fail]
* The apache2 configtest failed.
Output of config test was:
AH00526: Syntax error on line 9 of /etc/apache2/sites-enabled/mysite.com.conf:
Invalid command 'ProxyPass', perhaps misspelled or defined by a module not included in the server configuration
Action 'configtest' failed.
The Apache error log may have more information.

Answer 1

You are not including mod_proxy. Depends on your install (sorry not familiar with Ubuntu) but usually this means the following line will be in your main httpd.conf file:
#LoadModule proxy_module modules/modproxy.so
Remove the # so it stops being commented out and is loaded and restart Apache.
This link may also help: https://askubuntu.com/questions/341684/how-to-load-the-modules-for-apache2