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One IP Address, One Port, Multiple Web Sites on seperate servers?

I'm looking to find out if it's possible to share a single IP address and port for multiple websites by using some type of traffic inspector/director.

Basically I want to host multiple web sites using a single IP, but I have a requirement to have the web sites on physically seperated servers.

Yes, I am fully aware of Host name headers and have been using them for years, but all of the websites must co-exist on a single physical server and I can not do this here.

I'm wondering if there is software or hardware which could recieve the incoming traffic, inspect the hostname header information and then direct it to the appropriate server?

I would think some form of network load balancer might do this, but havent found one yet.

Is there any technical reasons why something like this couldn't exist?
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Dave_Hunt
Asked:
Dave_Hunt
1 Solution
 
adam_pedleyCommented:
Im not sure on that.

Couldn't you forward the request to another server from the Web Hosting Software your using?

http://support.microsoft.com/default.aspx?scid=kb;en-us;313074&sd=tech

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The--CaptainCommented:
Maybe try:

squid

or

run the actual web service on a single machine, and pull the data from the other machines using netbios or your favorite file-serving mechanism.

Cheers,
-Jon
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The--CaptainCommented:
If you could give us some more background and context for doing all this, we can probably be of more help.

Cheers,
-Jon
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Dave_HuntAuthor Commented:
Basically I want to have three different servers with three different owners using the same IP address (trying to avoid getting three Public IP addresses.

One is Linux w/ Apache
Two are 2003 Server w/ IIS

this is why I was looking for something that can do the redirection at a network layer before the request gets to the specific host.

adam: Your reference says "IIS instructs the browser to use the new URL"  The issue is that all public traffic should (in my theory) see the websites as the same external IP... I don't see how this could help.

Captain:  I'm not sure how squid could help me as it seems like it is a web proxy.
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Dave_HuntAuthor Commented:
adam... you got me thinking....

Would this work???

If I had a forth server on port 80 (HTTP) that was Running IIS and hosted the three sites, it could simply have a redirect page on them for each of the sites pointing them to a new port....

Example
Site1.com redirect to site1.com:81
Site2.com redirect to site1.com:82
Site3.com redirect to site1.com:83

then have the single Public IP redirect each of the different ports to different internal servers like this

Example
Port 80 redirect to 192.168.1.10 -> "redirector server" Running IIS (contains host name headers and redirect pages)
Port 81 redirect to 192.168.1.11 -> Apache Server listening on port 81
Port 82 redirect to 192.168.1.12 -> IIS Server Site 2 listening on port 82
Port 83 redirect to 192.168.1.13 -> IIs Server Site 3 listening on port 83

I am going to go home and try this, I will let everyone know how it works out....

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Dave_HuntAuthor Commented:
Using IIS and hostname headers on a redirection box worked seamlessly!

All three DNS records pointed to the same external IP address.  I created three sites on the redirector server each with a simple default.htm page using the following line.

<meta HTTP-EQUIV="REFRESH" content="0; url=http://www.site1.com:81">

This automatically redirected the browser to http://www.site1.com:81 and therefore the request was then forwarded by the router to the correct internal web server and port.

Now my web visitors dont need to worry about which port they need to use.

NOTE:  I tested this with IE and did not try any other browser.  (IIS hostname headers may not work correctly with all browsers)

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DarthModCommented:
PAQed with points refunded (125)

DarthMod
Community Support Moderator
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