simple HTTP server

[mocsr123]

I am working on making a simple HTTP server and I am having some problems getting it to connect properly. The relevant code is below. Winsock1 is a winsock control located on Form1, which is the startup object of the project.

Option Explicit
 
Private Sub Form_Load()
Winsock1.LocalPort = 80
Winsock1.Listen
End Sub
 
Private Sub Winsock1_ConenctionRequest(ByVal requestID As Long)
Winsock1.Close
Winsock1.Accept requestID
MsgBox "Hello"
End Sub

When I open http://*.*.*.* from a browser (where *.*.*.* represents my computer's IP address), I get the message box notification as desired and expected. If however I get a friend to go to http://*.*.*.* nothing happens. My friend also reports that browser times out trying to connect.

At first I thought that the firewall was the problem, but I have disabled Windows Firewall (I am running XP SP2 by the way). My IP address responds to pings, but I get no message box when my friend tries to connect on port 80.

Can anyone help me?

[diekick]

hi guy,
you have an easy problem, i think you cant build the header for connection go to this topic.
http://www.vbforums.com/showthread.php?t=411379

i hope you find whatever you want...

[mocsr123]

Hey there, and thanks for the reply. Unfortunately this is not what I was looking for. I know about headers but the code hasn't gotten to that point yet.

The problem is that I can only connect to my "server" from the computer that is running it. I asked a friend to help me test and he cannot connect. And on my computer, no message box appears (see code in first post of thread) indicating that the Winsock1_ConenctionRequest event was not triggered.

At first I thought the firewall was causing this, so I made my app an exception to Windows Firewall but this did not solve my problem. Then I completely disabled Windows Firewall, so it should work, right? My IP address now replies to pings, yet no connection is made on port 80...

[kazar]

I found this problem, and it is usually because either your freind, or you, are on a network, or through a router, and therefore can't get at it. I am trying to solve this problem myself to be honest.

[k1ll3rdr4g0n]

This is easily fixed, I assume both of you have a router. Just goto www.portforward.com and figure out how to open port 80.

[rory]

^
|
--- What he said .. if the server is on a PC that has a router between itself and the Internet, Port Forward Port 80 in your Router, and in your Firewall (or Windows Firewall with XPSP2) Open Port 80 (as that blocks incoming requests) .. this is because you are using TCP ports with winsock.

[Al42]

Also be aware that some modems do the same thing the router does - network address translation - so you have to forward a port in the modem.

If your computer's internal IP address (the one you see if you open a command window and type ipconfig and look at the IP Address: line) is 192.<something>, 10.<something> or 172.<something>, you're behind something doing NAT.

[diekick]

I think you should change RemotePort to 80 and LocalPort to 80 from Custom Window .

and both you and your friend must be in a network and have one mask ip and one gate ip.

[Al42]

I think you should change RemotePort to 80 and LocalPort to 80 from Custom Window .

and both you and your friend must be in a network and have one mask ip and one gate ip.

The only network both computers have to be in is the internet. Any two computers on the internet can transfer files if they (and whatever connects them to the internet) are configured properly.

[x2fusion]

Do yo have a router if so then you have to port forward

Port 80 -> 80

Also to see your external IP

http://cmyip.com

[skankerer]

It's because you spelt connection wrong. Works fine for me.

[x2fusion]

It's because you spelt connection wrong. Works fine for me.

Or it could be that he has a router !!!