I have installed Apache server on my Windows 7 computer. I was able to display the default index.php by typing http://localhost/ in the address line of my browser.
However, I am still unable to see this page by typing IP address of my computer (neither locally (from the same computer) no globally (from another computer connected to the Internet)).
I was told that I need to open port 80. I did it (in a way described here) but it did not solve the problem.
First of all I would like to check which ports are opened and which are not. For example I am not sure that my port 80 was closed before I tried to open. I am also not sure that it is opened after I tried to open it.
I tried to run a very simple web server written in Python. For that I used port 81 and it worked! And I did not try to open the port 81. So, it was opened by default. So, if 81 is opened by default, why 80 is not? Or it is?
ADDITIONAL INFORMATION:
1. In my httpd.conf file I have "Listen 80".
2. This site tells me that port 80 on my computer is opened.
3. I get different responses if I try http://myip:80 and http://myip:81. In the last case browser (Chrome) writes me that link is broken. In the first case I get: Forbidden You don't have permission to access / on this server.
4. IE writes that "The website declined to show this webpage".
Best Answer
If you are just spot checking your ports from the outside. Use this tool:
http://www.yougetsignal.com/tools/open-ports/
It will attempt to connect to your IP address, on the specific port, and let you know if it is open or closed to the outside world.
Local issues too? Sounds like the Windows 7 firewall is cutting you off. Add an exception with this tutorial...
http://www.sevenforums.com/tutorials/542-windows-firewall-add-remove-exception.html