How can I check if the appache server port number is configure for this Java SOAP API?

In the vendor's wsdl I found the text for the binding specification.  I assume that "Localhost:8443" that it refers to the Apache server's port number and not my local development PC, is that correct assumption?
<wsdl:service name="OpasService"><wsdl:port binding="tns:OpasServiceSoapBinding" name="OpasServicePort"><soap:address location="https://localhost:8443/opas/api"/></wsdl:port></wsdl:service>

I'm getting "Server actively refused to connect" when I call a method in this API server.  I also get socket error below:
 msg      "System.Net.Sockets.SocketException (0x80004005): No connection could be made because the target machine actively refused it [::1]:8443\r\n   at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)\r\n   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address,
ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)"      string

How can I check if the port number is opened?  

Thank you.
lapuccaAsked:
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Mark BullockQA EngineerCommented:
To determine if the port is open, you can use telnet, like this:
from the server:  telnet localhost 8443
from a client machine:  telnet yourhost.yourdomain.com 8443

If you get a connection, it will output "Connected to ...". If you don't you'll see "Connection timed out" or "Unable to connect..."
lapuccaAuthor Commented:
I'm on a windows 7 pc.  I typed in telnet in the command line in CMD dialog and it replied it doesn't recognize Telnet as a command.  Is telnet a unix command?
Mark BullockQA EngineerCommented:
You can also test if the port is open using your browser.
https://yourhost.yourdomain.com:8443

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lapuccaAuthor Commented:
I tried in the browser and it says "This page is not available".  Does that mean the port is not open?  This is supposed to be an end point, I think.
Brandon LyonSenior Frontend DeveloperCommented:
If it's actively refused then I think either the port isn't open or a firewall is blocking the connection. In order to check Apache's port configuration you might want to look at the virtual hosts defined in /etc/apache2/sites-available/default
lapuccaAuthor Commented:
thank you.  I opened the Firewall under Admin tools in Windows 2012 server and I don't see that port 8443 is listed there so I think it needs to be opened.
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