[daip] [!5635]: aips - AIPS TV issue on MAC 10.6.8

[Eric Greisen]

Eric Greisen updated #5635
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              Status: Closed (was: Open)
                 Due: - Cleared - (was: 27 October 2014 03:19 PM)

AIPS TV issue on MAC 10.6.8
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           Ticket ID: 5635
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/5635
           Full Name: Christopher J Stockdale
               Email: christopher.stockdale at mu.edu
             Creator: User
          Department: AIPS Data Processing
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Closed
            Priority: Default
      Template Group: Default
             Created: 10 October 2014 06:23 PM
             Updated: 23 October 2014 03:36 PM



Many users employ tv=local at all times.  It has all of the functionality
of the Internet TV sockets except that machines other than the one
the TV server (XAS) is running on cannot access the TV.  In fact, it
also offers the option to have multiple TVs for multiple AIPS sessions.
Fraser Owen is the only one I know that keeps ~5 or more going at all
times, but others do use 2 or so on occasion.

You could change to other socket numbers in /etc/services if you need
2 computers to talk to each other.  But you have to make the same change
in each.  I would look through the files (which may not be in numerical order) 
to find numbers not used at all.  The standard 5002 for the TV lock (SSSLOCK)
is used by "radio free ethernet" whatever that is.  But I have had users tell
me of issues if they first start IRAF and then aips.  Thus some software may seek
out unused addresses dynamically and then pass them around somehow.  The
above user had no problem if she started aips first and then iraf.

Eric Greisen




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