[Go-essp-tech] support for OpenDAP enabled clients?
Cinquini, Luca (3880)
Luca.Cinquini at jpl.nasa.gov
Fri Jul 15 03:06:17 MDT 2011
Hi Jamie,
the certificate must be obtained from a previous call to a MyProxy server, where you log in with your username and password.
Question for everybody: has anybody written instructions on how to download the MyProxy client and obtain a certificate ? We probably need a short tutorial on the ESGF wiki...
thanks, luca
On Jul 14, 2011, at 10:51 AM, Jamie Scott wrote:
> Thanks for the information. I tried your wget example, but I must be missing something. Where do I provide the authentication (user:password)?
> Is this user.pem a file I need to create?
>
> I'm not sure I understand what's going on with this syntax : "--certificate user.pem --private-key user.pem"
>
> -Jamie
>
>
> On Jul 14, 2011, at 10:05 AM, Cinquini, Luca (3880) wrote:
>
>> Hi Jamie,
>> we are working on that... the software is all there, but it needs to be deployed and configured uniformly across ESG. In short, what needs to happen is the following:
>>
>> a) each Node exposes data via an Opendap server (typically, the TDS)
>> b) each Node is configured with the PKI-based security filters for authentication and authorization)
>> c) the client of choice needs to be relinked with a version of the library (Netcdf-python or pydap) that supports ESG security - essentially, following redirects, send certificates and cookies
>>
>> For example, this is a working example of an opendap retrieval command via the wget client to the JPL TDS:
>>
>> wget --certificate user.pem --private-key user.pem http://esg-datanode.jpl.nasa.gov/thredds/dodsC/esg_dataroot/obs4MIPs/observations/atmos/ta/mon/grid/NASA-JPL/AIRS/v20110608/ta_AIRS_L3_RetStd-v5_200209-201105.nc.dods?ta[0:1:0][0:1:0][0:1:0][0:1:0]
>>
>> If you have a client that supports c), you could start trying to access the data from those nodes that have a) and b) configured already.
>>
>> thanks, Luca
>>
>>
>> On Jul 14, 2011, at 9:45 AM, Jamie Scott wrote:
>>
>>> Is there support for accessing data on ESG with OpenDAP enabled clients instead of downloading everything with a web browser or wget?
>>>
>>> Thanks,
>>>
>>> Jamie Scott
>>>
>>
>
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