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The MATROOS web service from the Dutch Rijkswaterstaat changes to a secure SSL connection. That means that the address in the url changes from to

This article describes how you can configure FEWS to use the https method. This applies to any import from Matroos, so for importypes like noos_timeseries.


Delft-FEWS is based on JAVA and JAVA does not have by default the PKI Overheid certificate in it's distribution. Unlike popular browsers like Firefox, Chrome or IE. Therefore the PKI Overheid certificate should be made known to JAVA using the below approach.

Step-by-step guide

  1. Change the URL in the import config files from 

  2. Add the attached file client.truststore to the root of your region folder. Note that this file has been generated based on the current certificate (dec. 2015) which will expire somewhere between 2018 - 2020. Before that time it should be updated.

    In case you have already an existing truststore, the certificate should be added to that existing file. See for details the below related article on how to manage that.

See also the general information on the generation of client truststores at

Here is described how you can generate your own client truststore file, for example using a private password.


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