multiple Red5 servers behind a Bastion Host

[tapas_mishra]

I have multiple Red5 (http://code.google.com/p/red5/) servers running on some machines internally on LAN.
For different subdomains.Ubuntu 10.04

The front end to the world is apache2 on a Bastion Host.

To be able to reach the streaming server I
embed a javascript in HTML pages
as follows


<embed .....
var="rtmp://site1.m (http://ocw.openitup.in/)y_domain.com (http://y_domain.com/)"
>
the problem is the website are many

site1.mydomain.com (http://site1.mydomain.com/)
site2.mydomain.com (http://site2.mydomain.com/)
site3.mydomain.com (http://site3.mydomain.com/)
site4.mydomain.com (http://site4.mydomain.com/)

each on a separate physical server.
Each of these four have their own Red5 (http://code.google.com/p/red5/) installations the front end to each of these four is a common Bastion Host.

If I run rtmp on each of the subdomains at a different port

how will I make sure
a request such as
rtmp://site1.mydomain.com (http://site1.mydomain.com/)
rtmp://site2.mydomain.com (http://site2.mydomain.com/)

goes to their respective servers.
from the front end server.
What do I need to handle in this case ?

IPTABLES came to mind instantly but from the client browser on internet when some one requests
rtmp://site1.mydomain.com

how will I make sure this rtmp request is mapped to a port different than 1935 as there are three other streaming servers which are also to respond to their respective requests
?

[tapas_mishra]

Ok I got some thing if some one is reading this thread.

To do with a single Public IP address. It requires
either port redirection or layer7 firewalls/reverse proxies such as SOCKS or
perhaps Squid.

One way is to run these streaming servers at different ports as
rtmp://site1.mydomain:8888 ---> your public IP address port 8888 which then
hits the firewall and is redirected:
publicIP port 8888 -----> privateip 192.168.0.1 port1935

rtmp://site2.mydomain:9999 ---> your public IP address port 9999 which then
hits the firewall and is redirected:

publicIP port 9999 -----> privateip 192.168.0.2 port1935


Simple to do and works well.


But in this case when I would like to try

Layer 7 proxies / firewall have to look at the url requested and then

So if some one has got close to this one some idea let me know now how to proceed.

[stlsaint]

It seems you are referring to port forwarding and vhosting. Port forwarding is done with your router in your network. Forwarding IE: Port 80 to private ip.
Vhost is the process of hosting multiple domains with one ipaddress. This is done with apache2.

[tapas_mishra]

Please see this link. (http://comments.gmane.org/gmane.comp.emulators.xen.user/60848)
May be you can suggest me some thing.