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<p class="MsoNormal"><span style="color:black">Dear CDDIS Users<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">PLEASE READ THE ENTIRE EMAIL!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black">For more than two years now CDDIS has been warning our user community about the eventual termination of anonymous ftp to the CDDIS archive. On 31 October 2020, anonymous ftp access will officially be discontinued at CDDIS. CDDIS
will bandwidth limit ALL anonymous ftp service starting the summer of 2020. CDDIS will implement bandwidth limits and final discontinuation of anonymous ftp service in the timeline below.<o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<ol style="margin-top:0in;font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px" start="1" type="1">
<li class="MsoListParagraph" style="color:black;margin-top:0in;margin-bottom:0in;margin-bottom:.0001pt;mso-list:l0 level1 lfo3">
1 July 2020 – all anonymous ftp service will be bandwidth limited to 1MB/s<o:p></o:p></li><li class="MsoListParagraph" style="color:black;margin-top:0in;margin-bottom:0in;margin-bottom:.0001pt;mso-list:l0 level1 lfo3">
10 August 2020 – all anonymous ftp service will be bandwidth limited to 250KB/s<o:p></o:p></li><li class="MsoListParagraph" style="color:black;margin-top:0in;margin-bottom:0in;margin-bottom:.0001pt;mso-list:l0 level1 lfo3">
1 October 2020 – all anonymous ftp service will be bandwidth limited to 50KB/s<o:p></o:p></li><li class="MsoListParagraph" style="color:black;margin-top:0in;margin-bottom:0in;margin-bottom:.0001pt;mso-list:l0 level1 lfo3">
31 Oct 2020 – all anonymous ftp service will be permanently discontinued at CDDIS<o:p></o:p></li></ol>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black">CDDIS is STRONGLY recommending all users begin to transition to use https (<a href="https://cddis.nasa.gov/archive">https://cddis.nasa.gov/archive</a>) as the preferred method of access to the CDDIS archive. Download procedures can
be found at: <span class="apple-converted-space"> </span><a href="https://cddis.nasa.gov/About/CDDIS_File_Download_Documentation.html">https://cddis.nasa.gov/About/CDDIS_File_Download_Documentation.html</a>, along with a Frequently Asked Questions (FAQ) link
and links of how to use cURL, wget and Python (<a href="https://cddis.nasa.gov/Data_and_Derived_Products/CDDIS_Archive_Access.html">https://cddis.nasa.gov/Data_and_Derived_Products/CDDIS_Archive_Access.html</a>)<o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black">CDDIS has also made available ftp-ssl (gdc.cddis.eosdis.nasa.gov) as a secondary method to access the archive. In some cases the use of ftp-ssl may make the conversion of existing scripts easier than using https. Examples of how
to use ftp-ssl are listed at: <span class="apple-converted-space"> </span><a href="https://cddis.nasa.gov/Data_and_Derived_Products/CDDIS_Archive_Access.html">https://cddis.nasa.gov/Data_and_Derived_Products/CDDIS_Archive_Access.html</a>.<o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black">CDDIS will NOT be changing the archive structure. So the locations that you are using to access files will stay the same. Though a prefix in the URL might be needed, (i.e. /archive for the https method) or a new host (for ftp-ssl).<o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black">CDDIS currently supports approximately 300,000 users and has served out almost 2 billion files in 2019. We understand that this change can have a significant impact on some of our users and have tried to make this process as easy
as possible. Unfortunately this change is mandated by the US Government and outside of CDDIS’s control. If there are questions or comments, we ask that you address them to<span class="apple-converted-space"> </span><a href="mailto:support-cddis@earthdata.nasa.gov">support-cddis@earthdata.nasa.gov</a><span class="apple-converted-space"> </span> and
not directly to any CDDIS staff member.<o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black">So in summary:<o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<ol style="margin-top:0in;font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px" start="1" type="1">
<li class="MsoListParagraph" style="color:black;margin-top:0in;margin-bottom:0in;margin-bottom:.0001pt;mso-list:l3 level1 lfo6">
<span style="font-size:12.0pt">Anonymous ftp service will be discontinued 31 October 2020.</span><o:p></o:p></li><li class="MsoListParagraph" style="color:black;margin-top:0in;margin-bottom:0in;margin-bottom:.0001pt;mso-list:l3 level1 lfo6">
<span style="font-size:12.0pt">Transition to https or ftp-ssl needs to begin NOW</span><o:p></o:p></li><li class="MsoListParagraph" style="color:black;margin-top:0in;margin-bottom:0in;margin-bottom:.0001pt;mso-list:l3 level1 lfo6">
<span style="font-size:12.0pt">Questions should be addressed to<span class="apple-converted-space"> </span><a href="mailto:support-cddis@earthdata.nasa.gov">support-cddis@earthdata.nasa.gov</a></span><o:p></o:p></li></ol>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black">R<o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;caret-color: rgb(0, 0, 0);word-spacing:0px">
<span style="color:black">Pat<o:p></o:p></span></p>
<p class="MsoNormal" style="caret-color: rgb(0, 0, 0);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Patrick Michael<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Deputy Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Crustal Dynamics Data Information System (CDDIS)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">NASA-Goddard Space Flight Center<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Greenbelt, MD 20771<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">301-614-5370<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:Patrick.Michael@nasa.gov"><span style="font-size:11.0pt">Patrick.Michael@nasa.gov</span></a><span style="font-size:11.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><img border="0" width="163" height="53" style="width:1.6979in;height:.552in" id="Picture_x0020_1" src="cid:image001.png@01D5B6A5.8E838260" alt="signature_1962649077"></span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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