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<div>Hi, Dan —</div>
<div>This is very unfortunate news! </div>
<div><br>
</div>
<div>We have not received any new funding for GDS modifications. Updating the tomcat version is probably not a difficult task for someone who is handy with apache, tomcat, java, and GDS functionality. Unfortunately, we simply do not have the resources to dedicate
to that project at COLA right now. </div>
<div><br>
</div>
<div>I know that NASA GSFC has managed to find a way to implement their operational GDS in an https environment, perhaps you could consult with Dana Ostrenga on how it was acomplished. I think they have integrated GDS with apache using port 80, maybe that strategy
could bypass the tomcat version issues? I noticed that some of the links in their GDS’s browser interface still have ‘http’ in them, but that is more of a minor user-interface issue… not mission critical. </div>
<div><br>
</div>
<div>GrADS will open a url with https, as long as the netcdf library has been built with an ssl-enabled version of the curl library. All of COLA’s 2.1.0 builds have recently been re-packaged with ssl so they will work with https-based data servers. The ssl
library is linked dynamically, so it needs to be present on the user’s local server. I just tried the URL you offered below, but got a different error I haven’t seen before: </div>
<div><br>
</div>
<div>
<div><font face="Courier" size="2">ga-> sdfopen <a href="https://nomads.ncdc.noaa.gov/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff">
https://nomads.ncdc.noaa.gov/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff</a></font></div>
<div><font face="Courier" size="2">Scanning self-describing file: <a href="https://nomads.ncdc.noaa.gov/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff">https://nomads.ncdc.noaa.gov/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff</a></font></div>
<div><font face="Courier" size="2">Duplicate dataset field names: NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff</font></div>
<div><font face="Courier" size="2"><font>context: Dataset { Grid { ARRAY: Float32 absv[time = 61][lev = 26][lat = 181][lon = 360]; </font><rest of output snipped>. </font></div>
</div>
<div><br>
</div>
<div>I don’t know what this means. The "Duplicate dataset field names” message comes from the netcdf library (dapparse.c). I will have to investigate further to figure out what’s going wrong with this particular dataset. </div>
<div><br>
</div>
<div>However, this NCDC GDS URL worked just fine with my new build:</div>
<div><a href="https://nomads.ncdc.noaa.gov/dods/NCDC_CLIMATE_SST/185401/18540101/ersst_999_18540101_0000_000">https://nomads.ncdc.noaa.gov/dods/NCDC_CLIMATE_SST/185401/18540101/ersst_999_18540101_0000_000</a></div>
<div><br>
</div>
<div>All new GrADS builds going forward will be ssl-enabled. </div>
<div>—Jennifer</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<br>
<div>
<div>On Jan 12, 2017, at 5:01 PM, Dan Swank - NOAA Affiliate <<a href="mailto:dan.swank@noaa.gov">dan.swank@noaa.gov</a>> wrote:</div>
<br class="Apple-interchange-newline">
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<div>
<div>Source: <a href="https://www.whitehouse.gov/blog/2015/06/08/https-everywhere-government">
https://www.whitehouse.gov/blog/2015/06/08/https-everywhere-government</a><br>
<br>
</div>
<br>
</div>
All .gov's http sites are supported to have switched already, or be going to https.<br>
</div>
It can cause quite some headaches with client connections to services,<br>
</div>
<div> especially with no oppertunity to test client programs.<br>
</div>
<br>
Not all sites are compliant yet.. but you can expect it may happen anytime.<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Jan 12, 2017 at 11:25 AM, Anthony Stump <span dir="ltr">
<<a href="mailto:f00dl3a@gmail.com" target="_blank">f00dl3a@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; position: static; z-index: auto;">
<div dir="auto">Will this impact data retrieved from <a href="http://tgftp.nws.noaa.gov/SL.us008001/ST.opnl/" target="_blank">http://tgftp.nws.noaa.<wbr>gov/SL.us008001/ST.opnl/</a> ?</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">
<div>
<div class="h5">On Jan 12, 2017 9:53 AM, "Dan Swank - NOAA Affiliate" <<a href="mailto:dan.swank@noaa.gov" target="_blank">dan.swank@noaa.gov</a>> wrote:<br type="attribution">
</div>
</div>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; position: static; z-index: auto;">
<div>
<div class="h5">
<div dir="ltr">
<div>
<div>
<div>
<div>
<div>
<div>
<div>This is to inform GrADS Users of <a href="https://nomads.ncdc.noaa.gov/dods/" target="_blank">
https://nomads.ncdc.noaa.gov/d<wbr>ods/</a> ~<br>
<br>
</div>
Regretfully,<br>
This service is scheduled to be taken offline by the<b> end of February</b> 2017.<br>
<br>
</div>
The two primary reasons being the US Government HTTPS mandate<br>
</div>
(Jan 2017) rendering the server largely useless.<br>
</div>
<div> This was essentially"Death from above".<br>
<br>
</div>
And 2, the changing server enviornments are demand the application<br>
</div>
be run under a recent version of Tomcat 7+. Preferably delivered by a .war file<br>
</div>
<div> that can be dropped into the container..<br>
</div>
<br>
If these two issues could be addressed, we may be<br>
</div>
able to resurrect this service.<br clear="all">
<div><br>
This message has <i>no direct affiliation </i>with:<br>
<a href="http://nomads/" target="_blank">http://nomads</a>.<b>ncep</b>.<a href="http://noaa.gov/dods-alt" target="_blank">noaa.gov/do<wbr>ds-alt</a><br>
The NCEP component will remain up, <br>
but is also in some degree of danger, I cannot address further.<br>
<br>
NCDC-NOMADS THREDDS services can be used in some cases<br>
to compensate opendap functionality for NCEP model datasets<br>
but generally will not work via. a local GrADS client via. sdfopen.<br>
<br>
<a href="https://nomads.ncdc.noaa.gov/thredds/catalog.html" target="_blank">https://nomads.ncdc.noaa.gov/t<wbr>hredds/catalog.html</a><br>
<br>
<br>
<br>
<br>
<br>
Some more detail:<br>
<br>
GDS generates links (hrefs) in the form of <a href="http://hostname:443/URI" target="_blank">
HTTP://hostname:443/URI</a> instead of <a href="https://hostname/URI" target="_blank">
HTTPS://hostname/URI</a><br>
<br>
Even so... Trying sdfopen fails :<br>
<br>
<br>
Scanning self-describing file: <a href="http://nomads.ncdc.noaa.gov:443/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff" target="_blank">
http://nomads.ncdc.noaa.gov:44<wbr>3/dods/NCEP_GFS/201612/2016120<wbr>4/gfs_3_20161204_0000_fff</a><br>
syntax error, unexpected SCAN_WORD, expecting SCAN_ATTR or SCAN_DATASET or SCAN_ERROR<br>
context: <!DOCTYPE^ HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><html><head><title>40<wbr>0 Bad Request</title></head><body><h<wbr>1>Bad Request</h1><p>Your browser sent a request that this server could not understand.<br />Reason: You're speaking plain HTTP to
an SSL-enabled server port.<br />Instead use the HTTPS scheme to access this URL, please.<br /><blockquote>Hint: <a href="<a href="https://nomads.ncdc.noaa.gov/" target="_blank">https://nomads.ncdc.noaa<wbr>.gov/</a>"><b><a href="https://nomads.ncdc.noaa.gov/" target="_blank">https://nomads.ncdc.<wbr>noaa.gov/</a></b></a></blockquote><wbr></p></body></html><br>
Error: nc_open failed to open file <a href="http://nomads.ncdc.noaa.gov:443/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff" target="_blank">
http://nomads.ncdc.noaa.gov:44<wbr>3/dods/NCEP_GFS/201612/2016120<wbr>4/gfs_3_20161204_0000_fff</a><br>
NetCDF: Malformed or inaccessible DAP DDS<br>
gadsdf: Couldn't ingest SDF metadata.<br>
<br>
An alternate form, also "no dice":<br>
<br>
ga-> sdfopen <a href="https://nomads.ncdc.noaa.gov/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff" target="_blank">
https://nomads.ncdc.noaa.gov/d<wbr>ods/NCEP_GFS/201612/20161204/g<wbr>fs_3_20161204_0000_fff</a><br>
Scanning self-describing file: <a href="https://nomads.ncdc.noaa.gov/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff" target="_blank">
https://nomads.ncdc.noaa.gov/d<wbr>ods/NCEP_GFS/201612/20161204/g<wbr>fs_3_20161204_0000_fff</a><br>
Error: nc_open failed to open file <a href="https://nomads.ncdc.noaa.gov/dods/NCEP_GFS/201612/20161204/gfs_3_20161204_0000_fff" target="_blank">
https://nomads.ncdc.noaa.gov/d<wbr>ods/NCEP_GFS/201612/20161204/g<wbr>fs_3_20161204_0000_fff</a><br>
NetCDF: I/O failure<br>
gadsdf: Couldn't ingest SDF metadata.<br>
<br>
<br>
-- <br>
<div class="m_-940217699608991314m_-7067071684315867136gmail_signature">
<div dir="ltr"><br>
Dan Swank<br>
NOMADS System Support, STG Inc. - Federal Government Contractor<br>
NOAA's National Centers for Environmental Information (NCEI)<br>
Data Stewardship Devision (DSD)<br>
151 Patton Ave<br>
Asheville, NC 28801<br>
<a href="mailto:dan.swank@noaa.gov" target="_blank">dan.swank@noaa.gov</a><br>
Phone: 828-271-4007<br>
Customer Support: 828-271-4800 or <a href="http://www.ncdc.noaa.gov/contact" target="_blank">
http://www.ncdc.noaa.gov/conta<wbr>ct</a><br>
<br>
The newly formed NCEI merges the National Climatic Data Center (NCDC), the National Geophysical Data Center (NGDC), and the National Oceanographic Data Center (NODC).<br>
<br>
Facebook: <a href="http://www.facebook.com/NOAANationalClimaticDataCenter" target="_blank">
http://www.facebook.com/NOAANa<wbr>tionalClimaticDataCenter</a> Twitter: @NOAANCDC @NOAAOceanData<br>
<br>
======================= Disclaimer ===========<br>
I am not a Federal Employee. <br>
Any opinions expressed in this message are mine personally and<br>
do not represent official positions from STG Inc, ERT, NCEI, or NOAA<br>
==============================<wbr>==============</div>
</div>
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<br>
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<br>
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<br>
<br clear="all">
<br>
-- <br>
<div class="gmail_signature" data-smartmail="gmail_signature">
<div dir="ltr"><br>
Dan Swank<br>
NOMADS System Support, STG Inc. - Federal Government Contractor<br>
NOAA's National Centers for Environmental Information (NCEI)<br>
Data Stewardship Devision (DSD)<br>
151 Patton Ave<br>
Asheville, NC 28801<br>
<a href="mailto:dan.swank@noaa.gov" target="_blank">dan.swank@noaa.gov</a><br>
Phone: 828-271-4007<br>
Customer Support: 828-271-4800 or <a href="http://www.ncdc.noaa.gov/contact" target="_blank">
http://www.ncdc.noaa.gov/contact</a><br>
<br>
The newly formed NCEI merges the National Climatic Data Center (NCDC), the National Geophysical Data Center (NGDC), and the National Oceanographic Data Center (NODC).<br>
<br>
Facebook: <a href="http://www.facebook.com/NOAANationalClimaticDataCenter" target="_blank">
http://www.facebook.com/NOAANationalClimaticDataCenter</a> Twitter: @NOAANCDC @NOAAOceanData<br>
<br>
======================= Disclaimer ===========<br>
I am not a Federal Employee. <br>
Any opinions expressed in this message are mine personally and<br>
do not represent official positions from STG Inc, ERT, NCEI, or NOAA<br>
============================================</div>
</div>
</div>
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<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="font-size: 12px; orphans: 2; widows: 2;">--</div>
<div style="font-size: 12px; orphans: 2; widows: 2;">Jennifer Miletta Adams<br>
Center for Ocean-Land-Atmosphere Studies (COLA)<br>
George Mason University<br>
<br>
<br>
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