[LON-CAPA-admin] port 40914

[lucasm at ohiou.edu]

Our only problem has been that the local high school blocks port 8080.
I only found out last week that they all use the remote without the 
buttons!

Mark

On Wed, 29 Sep 2004, Guy Albertelli II wrote:

> Hi Lars,
> 
> > > To my knowledge, Port 40914 is not currently in use by LON-CAPA.
> > 
> > Well, I had to set my firewall to trust my lon-capa server before I
> > could access it from the client. The reason has to do with the
> > lon-capa server trying to negotiate ports in the neighborhood of 41000.
> 
> 
> Lon-capa doesn't try to connect to your client computer ever.
> 
> When your browser is told to go to the Lon-CAPA website it picks a
> port on your computer to receive data on, and then connects to port 80
> on the loncapa server.
> 
> Receiveing ports are generally rather high numbers, 41000 sounds
> likely.
> 
> So this isn't something that is Lon-CAPA related.
> 
> 
> > > > What ports are lon-capa machines/applications using?
> 
> Lon-CAPA, as pointed out by others need to be able to accept
> connections on 80,5663,8080
> 
> > > > What ports must client firewalls allow traffic through?
> 
> We never try to connect to the client computer, so no incoming ports
> need to be open.
> 
> But the webbrowser is going to connect to us, so you will need to
> allow outgoing connections on whatever ports the browser is using.
> 
> > > > What ports must lon-capa server firewalls allow traffic through?
> 
> 80,8080,5663
> 
> > > > Could this create obstacles for students trying to access a loncapa
> > > > server?
> 
> I have not yet heard of this affecting any students here. We had some
> issues with the release of WinXP SP2, as there are some conflicts if
> you try to run the SP2 firwall and the ZoneAlarm firwall at the same
> time.
> 
> Outside of that we haven't heard of any problem with students and
> their firewalls.
> 
> 
> -- 
> guy at albertelli.com  LON-CAPA Developer  0-7-3-2-
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> 

----------------------------------------------------------------------------
Mark Lucas					email: lucasm at ohiou.edu
252D Clippinger Lab  				phone: (740)597-2984
Department of Physics and Astronomy             fax:   (740)593-0433
Ohio University
Athens, OH 45701