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20020613: netCDF libraries for win32

>From: Marcello Magaldi <address@hidden>
>Organization: ?
>Keywords: 200206131630.g5DGUYJ15649 netCDF FTP

Marcello,

>I can't download the pre-built netCDF 3.5.0 libraries for Win32 systems.
>Also, it is impossible to download the file to do my own source and the
>WIN32_README.TXT file via FTP. It's a my problem or yours?

I just verified that I can FTP the netCDF 3.5.0 libraries for Win32 systems
from a machine that is not located in our domain, so there is no systematic
problem on our end.  Here is the sequence that I used:

ftp ftp.unidata.ucar.edu
  <user> anonymous
  <pass> your_full_email_address
  cd pub/netcdf/contrib/win32
  binary
  get netcdf-3.5.0.win32bin.ZIP
  quit

The transaction messages looked like:

ftp> get netcdf-3.5.0.win32bin.ZIP
200 PORT command successful.
150 Opening BINARY mode data connection for netcdf-3.5.0.win32bin.ZIP (349990 
bytes).
226 Transfer complete.
local: netcdf-3.5.0.win32bin.ZIP remote: netcdf-3.5.0.win32bin.ZIP

One thing we do enforce is a forward and reverse name lookup for machines
FTPing to our site.  If you were trying to FTP from a machine that this
can not be done for, you will be denied.

For instance, I just checked to see if this was the case for
area.ba.cnr.it (the machine your email originated from), and it looks
like it may present a problem:

%nslookup area.ba.cnr.it
Server:  laraine.unidata.ucar.edu
Address:  128.117.140.62

Non-authoritative answer:
Name:    area.ba.cnr.it
Address:  194.119.200.100

% nslookup 194.119.200.100
Server:  laraine.unidata.ucar.edu
Address:  128.117.140.62

Name:    area.area.ba.cnr.it
Address:  194.119.200.100

Notice how the forward lookup (name -> IP) gives the machine IP as
194.119.200.100.  When the reverse lookup is done, the name comes
back as area.area.ba.cnr.it which is not the same as area.ba.cnr.it.

I also looked in our FTP logs and see a machine from ba.cnr.it connecting
and successfully downloading the standard netCDF distribution, netcdf.tar.Z:

Jun 11 03:21:44 laraine.unidata.ucar.edu ftpd[7254]: ANONYMOUS FTP LOGIN FROM ri
cercatori05.isec.ba.cnr.it [194.119.206.34], isecfs21@
Jun 11 03:21:44 laraine.unidata.ucar.edu ftpd[7254]: CWD pub/netcdf
Jun 11 03:21:45 laraine.unidata.ucar.edu ftpd[7254]: TYPE Image
Jun 11 03:21:45 laraine.unidata.ucar.edu ftpd[7254]: PORT
Jun 11 03:21:45 laraine.unidata.ucar.edu ftpd[7254]: RETR netcdf.tar.Z
Jun 11 03:22:22 laraine.unidata.ucar.edu ftpd[7254]: QUIT

Was this you?

I do not, however, see any attempt to download anything from the
pub/netcdf/contrib/win32 directory.  When did you try your FTP?

>Thanks a lot,
>Marcello Magaldi

Tom Yoksas