[plt-scheme] Re: Newbie question about PLT web application

I tried what John mentioned, and got a connection failed error after about
10-15 seconds.
I also included serve/servlet and add #:listen-ip
#f at the bottom of my application. The documentation also says to change
the top of my application from

  #lang web-server/insta

to
 (require web-server/servlet)
 (provide/contract (start (request? . -> . response/c)))

but I'm not sure what the second line is doing, if that is a correct syntax
or not or if I should change/add something to that line, and it is causing
an error saying something like (undefined module in responce/c. )

I'm providing the code that I'm using in case anyone has the time to take a
look and see if there is something I'm doing wrong.

Thanks,

On Tue, Apr 21, 2009 at 7:33 AM, Jay McCarthy <jay.mccarthy at gmail.com>wrote:

> Another thing to do is to switch to serve/servlet and add #:listen-ip
> #f to the arguments.
>
> Jay
>
> On Mon, Apr 20, 2009 at 10:02 PM, John Clements
> <clements at brinckerhoff.org> wrote:
> >
> > On Apr 18, 2009, at 10:20 PM, gadva wrote:
> >
> >> Thanks for the quick reply,
> >>
> >> Sorry If I was unclear with the question, I just haven't had that much
> >> experience with setting up a web server before, and with networking in
> >> general so I'm not sure about the right terminology yet.
> >>
> >> I guess my question was how to setup the application to serve requests
> >> to users connecting to my server by typing
> >> http://serverIP:8000/myapplication.ss.
> >>
> >> Because right now when I test it on a browser from within the server
> >> it runs ok, but when I attempt to connect from a different computer it
> >> does not work. So by using the code described above (and in the PLT
> >> Blog Application example from the website) (basically using web-sever/
> >> insta, serve/servlet) I am running the application on a selected port,
> >> so when a user connects to my IP adress with the correct port etc
> >> shouldn't the web server accept a request and respond with the HTML
> >> page that I define?
> >
> > Speaking very generally, yes.
> >
> > My guess is that the external requests are not reaching your web server,
> > either because of a software firewall or because of an external network
> > firewall.
> >
> > One easy test is to try to contact the your PLT web server on the given
> port
> > using a simple telnet client from another machine, e.g.:
> >
> > my-other-machine% telnet serverIP 8000
> >
> > If it goes through... well, I'd be surprised.  My guess is that it will
> > fail, but it can fail in two very different ways: most firewalls refuse
> to
> > answer entirely, in order to increase the cost of port scanning.  So if
> you
> > get an immediate "server is not answering" message, then there's probably
> no
> > firewall in place.  If you just get a stalled telnet, then there's
> probably
> > a firewall in place.
> >
> > FWIW, there are about 150 things that could be going wrong here; my
> > confidence that I'm steering you in the right direction is only slightly
> > higher than 50%.
> >
> > All the best,
> >
> > John Clements
> >
> >
> >
> > _________________________________________________
> >  For list-related administrative tasks:
> >  http://list.cs.brown.edu/mailman/listinfo/plt-scheme
> >
> >
>
>
>
> --
> Jay McCarthy <jay at cs.byu.edu>
> Assistant Professor / Brigham Young University
> http://teammccarthy.org/jay
>
> "The glory of God is Intelligence" - D&C 93
>
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