Can nginx hide port number and rewrites for virtualhost?

I’m running Oracle Collab Suite on port 7777 and 7778. Oracle installed
its own Apache and hacking it has proven to be difficult. For one thing,
I can’t seem to get VirtualHost to work correctly. Since it doesnt use
port 80 by default, I decided to put nginx in front of it. I managed to
proxy pass port 80 to 7778. However, it doesnt stop there. Here’s how
things are now.

My mail is pointed to the following URL:
http://mail.domain.com:7778/ocsclient/
My conferencing portal is pointed to:
http://mail.domain.com:7778/imtapp/app/prelogin.uix

As you can see, the URLs are pointed to mail because that’s what the
machine name is called. I managed to create a CNAME which works but once
it redirects after you log in, it goes back to
http://mail.domain.com:7778/
So, two things …

1 - How can I hide the port number, I think I got it to work using
proxy_pass but that only seems to work for one “server.”

server {
listen 80;
server_name mail.domain.com;

location / {
  index index.html;
  proxy_pass http://mail.domain.com:7778;
}

}

I added a second “server” directive for “conference.domain.com” but it
sends me in a loop.

2 - How can I rewrite my URL so that if I go to “conference.domain.com
it doesn’t change to “mail.domain.com.” Don’t forget the app was
installed and takes the hostname of the server which is mail.domain.com.

Posted at Nginx Forum: Can nginx hide port number and rewrites for virtualhost?

On Thu, Apr 09, 2009 at 08:56:59PM -0400, sdotsen wrote:

server {

2 - How can I rewrite my URL so that if I go to “conference.domain.com” it doesn’t change to “mail.domain.com.” Don’t forget the app was installed and takes the hostname of the server which is mail.domain.com.

http://wiki.nginx.org/NginxHttpProxyModule#proxy_redirect

However, it rewrites "Location"s header only. It can not rewrite links
inside HTML.