How to have two http server in one public IP?

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pstar008

341 posts

Ultimate Geek

# 50171 23-Nov-2009 23:36

Is it possible to have two http (apache) servers in one public IP, how?

My problem is that I haven't figure out how to forward 80 port to two servers in my LAN simutaneous.

allstarnz

1700 posts

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# 275676 24-Nov-2009 00:05

don't see why not. You could run one on 80 and the other on 8080 (or any port for that matter)

Apache server 1 on PC A: 80 -> 80
Apache server 2 on PC B: 80 -> 8080

or something like that....

or did I miss the point?

sbiddle

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Biddle Corp

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# 275695 24-Nov-2009 06:56

Is there a reason why are you trying to run two web servers on the same port and don't just use different ports? Or forward different ports on the router to port 80 on the PC's as mentioned above?

Microsoft ISA can do what you want but my suggestion would be that if you don't understand what you are doing now then it's not a product for you.

Kraven

621 posts

Ultimate Geek

# 275698 24-Nov-2009 07:02

Since you're using Apache, you can use virtual hosts to achieve this easily.

http://httpd.apache.org/docs/2.2/vhosts/

friedCrumpet

268 posts

Ultimate Geek

# 275703 24-Nov-2009 07:22

Or if you really need two separate servers you could use apache reverse proxy coupled with vhosts to do it.

Filterer

488 posts

Ultimate Geek

# 275706 24-Nov-2009 07:37

Virtual Hosts in apache are exactly what you are after (I think!)

If they MUST run on seperate machines then you can do the following

Foward port 80 to Box 1
On box one have two virtual hosts, 1 serving content, the other doing using the ProxyPass directive to get content from the other Apache instance (by using the internal IP)

pɐǝɥ sıɥ uo ƃuıpuɐʇs

pstar008

341 posts

Ultimate Geek

# 275710 24-Nov-2009 08:17

thanks for the excellent answers!

In fact I don't really need two separate servers, and I had one machine with virtual host (still trying to figure out how to use it beyond the simplest case). But since I already got two servers with synchronized version on both, I think it would be nice to have them both available online.

So I think simply forward one port from single public IP to two separate machines doesn't work, is it? If I want be able to SSH to two of my machines, I need either forward two ports from outside for each machine or some other workarounds such as SSH through one of them first?

sbiddle

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# 275719 24-Nov-2009 08:59

You can't port forward the same port to two different machines inside your network.

You can port forward two different ports to port 80 inside your network. Likewise if you want to be able to SSH into two different machines you'd set up two different port forwards on your router, maybe with port 22 and 222 for example. These can forward to port 22 on the internal machine.

chrisjunkie

407 posts

Ultimate Geek

# 275735 24-Nov-2009 10:02

pstar008: thanks for the excellent answers!

In fact I don't really need two separate servers, and I had one machine with virtual host (still trying to figure out how to use it beyond the simplest case). But since I already got two servers with synchronized version on both, I think it would be nice to have them both available online.

So I think simply forward one port from single public IP to two separate machines doesn't work, is it? If I want be able to SSH to two of my machines, I need either forward two ports from outside for each machine or some other workarounds such as SSH through one of them first?

If you want to load balance then what you should do is check out the howtoforge tutorial: http://www.howtoforge.com/high_availability_loadbalanced_apache_cluster

Otherwise yeah just get rid of one box. Better yet. Make a NAS or something! :D

Filterer

488 posts

Ultimate Geek

# 275758 24-Nov-2009 11:35

pstar008: and I had one machine with virtual host (still trying to figure out how to use it beyond the simplest case).

Just yell out if you need help with this - I have a server with about 20 virtual hosts configured :)

pɐǝɥ sıɥ uo ƃuıpuɐʇs

pstar008

341 posts

Ultimate Geek

# 275820 24-Nov-2009 15:20

Filterer:
pstar008: and I had one machine with virtual host (still trying to figure out how to use it beyond the simplest case).

Just yell out if you need help with this - I have a server with about 20 virtual hosts configured :)

Thanks. My experience with virtual hosts/Apache is that it is really hard to find error message when it didn't work

pstar008

341 posts

Ultimate Geek

# 275822 24-Nov-2009 15:26

chrisjunkie:
If you want to load balance then what you should do is check out the howtoforge tutorial: http://www.howtoforge.com/high_availability_loadbalanced_apache_cluster

Don't need that for my personal web site yet :)

Otherwise yeah just get rid of one box. Better yet. Make a NAS or something! :D

One of these are already a file server thing, another is for development and once tested, I just push the changes to the main server. thus I got one experimental version and one tested version.