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I just installed apache2 this morning and am able to start the server and correctly pull up the sample webpage at http://localhost.

I am behind a router so I set the router up for port forwarding to the proper server computer.

However, when I enter http:// to access my page into my browser, it does not work, and says server not found.

Can anyone please suggest what might be the problem here? This is a typical installation of desktop Ubuntu 12.04.

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I assume you are trying to access the web server from a machine on the other side of your router since you mentioned that you are port forwarding to the ubuntu server. Is it possible the router has a firewall which is blocking port 80 (http)? Is it possible you have a firewall installed on the Ubuntu server like firestarter that might be blocking port 80? Can you access the page from another machine on your internal network?

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I can access the page from another machine on my internal network with no problem. – Michael Clare Apr 27 '12 at 16:11
I don't have a firewall, pretty much this is a fresh install of desktop ubuntu 12.04. I will check to see if there is a router firewall, thank you. – Michael Clare Apr 27 '12 at 16:12
Some ISPs block port 80 - you might try running the web server on a different port and accessing the page that way http://host:port – in8sworld Apr 27 '12 at 16:14
Also, it does not seem to be a router issue, as I connected my server directly to the ISP, bypassing the router to check this. The page still did not pull up. – Michael Clare Apr 27 '12 at 16:16
Can you confirm that your ISP isn't blocking port 80? Many do. – in8sworld Apr 27 '12 at 16:20

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