[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[McIDAS #SRD-104827]: ADDE port trouble again

Hi Brian,

> I think the issue is the local network a user connects from blocking 112. No, 
> Not ucar
> nor your home ISP, but at least 2 others my folks have tried to use idv from 
> this year,
> and the UM training lab we used if I recall Correctly?

Yes, you are remembering correctly that the UMiami WiFi network was explicitly
blocking connections to port 112 on remote machines.  Why UMiami has chosen to
do this is a bit of a mystery, but it does follow the lead for ultra-security
minded institutions like the U.S. military and some governmental sites.  This
policy affects typically affects all privileged ports (<=512) with the exception
of that used by web servers, port 80.

> This  is a firewall admin issue, beyond any of our control, but could there 
> be a more
> helpful error thrown or something?

I will ask the IDV guys if there is any way to determine programatically if
requests to an ADDE server is being blocked by a firewall somewhere as opposed
to the server not listening to the request.  This is a big issue that promises
to get bigger as time goes on (i.e., security locking things down more and more
to the point that it becomes hard to get work done).

Perhaps an official request could be sent to the UMiami networking group to
open up ports 112 and 388?  If you recall, we discussed this possiblity
while in Miami for the training workshop, but the time frame was too short
for anything to be done.


Unidata User Support                                    UCAR Unidata Program
(303) 497-8642                                                 P.O. Box 3000
address@hidden                                   Boulder, CO 80307
Unidata HomePage                       http://www.unidata.ucar.edu

Ticket Details
Ticket ID: SRD-104827
Department: Support McIDAS
Priority: Normal
Status: Closed

NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.