is there any way to get a connection equivalent to winsock going over the internet instead of a network
Printable View
is there any way to get a connection equivalent to winsock going over the internet instead of a network
Winsock goes as easily over the internet as it does through a network, except for the usual firewalls.
anything you have to do differently?
Hmm the firewalls you say...
Would this possibly affect
-File downloading using winsock
-File downloading using other methods (vb)
-Connecting to another computer(server) using winsock?
Any ideas? Thanks!
Thougth id ask hence we're talkin about it :D
Either you can use ports that the firewall has open, or you can have the ports opened for you, but this requires a manual process to be performed by the users.
Not everybody has a firewall, and not many of them are configured the same way.
You can't know in advance how the firewall is set up, so it's best to use open ports, or have a method to try a port, and select alternates if one is blocked.
msn does this with the messanger that allows it to do all sorts of things despite a closed firewall.
HTTP TCP/80 is always open as is HTTP Proxy TCP/8080. SMTP TCP/25 may also be open.
I would recommend you use port 80 and also allow your users to enter a proxy server in their settings so should there be a firewall, users can still use the applications Internet facilities.