Reverse Proxy In Ubuntu
Flex, CFML, Adobe, ColdFusion, Microsoft, LinuxThe last few days I have spend some time setting up 2 new servers. One running Railo on Ubuntu and the other Coldfusion in Windows. I needed to host this on a single IP address and needed both machines available on the internet. There are 2 ways I know of that can accomplish this task 1. Using Microsoft ISA and 2 Using Apache as a reverse proxy. As I already have Apache up and running I went with option 2. While a seemingly trivial task I had never done this before and got hung up a few times the following are the steps I took: Define the urls you want to re-direct to a different server:
<VirtualHost *:80>
ServerName www.myExternalDoomianName.com
ProxyPass / http://myInternalDnsName/ ( or ip address )
ProxyPassReverse / http:// myInternalDnsName / (or ip address )
ProxyPreserveHost on
</VirtualHost>
ProxyPreserveHost keeps the host headers intact so the internal sever can still use virtual websites.
Then run:
a2ensite myReverseProxySites
Need some extra bits for apache.
apt-get install libapache2-mod-proxy-html a2enmod proxy a2enmod proxy_html a2enmod headers a2enmod proxy_connect a2enmod proxy_balancer
Restart apache
/etc/init.d/apache2 restart
If something isn’t working start looking in the logs:
tail -f /var/log/apache2/error.log
I'd imagine Session still works right? 'cause it is based on Cookie instead of IP? (as long as I'm pointing them to the same CF server)
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