[Tutor] error

[Danny Yoo]

>
> Have you checked that you have the requisite permissions? That the
> socket you are connecting to exists? If its a system call error the
> problem is most likely in your environment rather than your code.
>


That particular error is from Windows.  One common cause for it is a
network firewall, which normally is great because at least it's
working as a first line of defense.  If that's the case, you probably
want to tell your firewall to make an exception for your program.