[gradsusr] Accessing geos-5 servers using GrADS and curl

James T. Potemra jimp at hawaii.edu
Sun Sep 29 21:42:12 EDT 2019

Hi all,

For what it's worth, I can open this file without problem.  I'm using:

> Config: v2.2.1.oga.1 little-endian readline grib2 netcdf hdf4-sds hdf5 
> opendap-grids,stn athena geotiff shapefile
on a Mac.  My .netrc contains the same information as below (different 
username/password of course).  My .dodsrc file is also similar, but I 
think you need to remove the leading hash, and I use a leading dot 
(.netcdf and .dodsrc) in place of underscore (_netrc and _dodsrc)

> # COOKIE_JAR=.dods_cookies
> HTTP.NETRC=/Users/jimp/.netrc
> HTTP.COOKIEJAR=/Users/jimp/.urs_cookies

On 9/28/19 9:34 AM, avi kojokro wrote:
> Hi,
> I was trying to connect to this 
> <https://goldsmr4.gesdisc.eosdis.nasa.gov/dods/> site and it asked for 
> login details. I have such details and I enter them correctly I am 
> able to access the site. However, I couldn't access the same site 
> using GrADS, probably because GrADS doesn't have the needed login 
> details and consequently fails to authenticate.
> I talked with James Potemra about it and he suggested to try this 
> <https://disc.gsfc.nasa.gov/data-access#grads>. However, in step 5 I 
> get the following error in grads:
>     Scanning self-describing file:
>     https://goldsmr4.gesdisc.eosdis.nasa.gov/dods/M2TMNXSLV
>     syntax error, unexpected WORD_WORD, expecting SCAN_ATTR or
>     context: HTTP^ Basic: Access denied.
>     sdfdeflev: nc_get_vara_double failed to read coordinate axis values
>      NetCDF: Authorization failure
>     gadsdf: Failed to define X coordinate values.
>  I get it when trying on both windows and a linux VM.
> The .netrc file contains the following:
>     machine urs.earthdata.nasa.gov <http://urs.earthdata.nasa.gov>
>     login xxxxxx
>     password yyyyyy
>     machine goldsmr4.gesdisc.eosdis.nasa.gov
>     <http://goldsmr4.gesdisc.eosdis.nasa.gov>
>     login xxxxxx
>     password  yyyyyy
> The .dodsrc file contains the following, on windows. (James wrote it 
> needs to contain "remote OPeNDAP server access information". If that 
> is the cause of the issue, what is the format?):
>     #HTTP.NETRC="C:\Users\OWNER\_netrc"
>     #HTTP.COOKIEJAR="C:\Users\OWNER\_urs_cookies"
> The cookie file, after curl is run, contains the following (on 
> windows, the base64 was modified for this email):
>     # Netscape HTTP Cookie File
>     # https://curl.haxx.se/docs/http-cookies.html
>     # This file was generated by libcurl! Edit at your own risk.
>     .earthdata.nasa.gov <http://earthdata.nasa.gov> TRUE / FALSE
>     1568399835 urs_user_already_logged yes
>     #HttpOnly_urs.earthdata.nasa.gov
>     <http://HttpOnly_urs.earthdata.nasa.gov> FALSE / FALSE 1568399835
>     _urs-gui_session c5ad3b0da8eac8c3994ccda5c32a9fde
>     .nasa.gov <http://nasa.gov> TRUE / FALSE 0
>     nasa_gesdisc_data_archive
>     eaweafpPJ2eERpdaefeOMyf5dsdafeaJVtEIEWSDFefwaMuPFD36eaeadHYuzievmLDSFWSF1XoXHTnXB8duM3+gshSDESTUmExUadCqWy0SEOxKdafeP9f6bs51XC48BhZaMuqMfLbARWEFDS342MA==
> Has anyone encountered this issue and knows how to fix it?
>  Avi
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