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To install the FEWS WebServices at least the latest version the Tomcat 7 application server is required. See: https://tomcat.apache.org/download-70.cgi
The requirements of the Java version to be used is the same as for the FEWS version that is being used.
This installation guide assumes a newly installed Tomcat 7 or Tomcat 8 application server. For migrating existing installations from before FEWS 2017.02, see the paragraph on Migration.
Todo.
Migration
ToDo