Show filters Hide filters

Refine your search

Publication Year
1-2 out of 2 results
Change view
  • Sort by:
25:51 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
Found in:

Advanced Security With GeoServer

The presentation will provide an introduction to GeoServer own authentication and authorization subsystems. We'll cover the supported authentication protocols, such as from basic/digest authentication and CAS support, check through the various identity providers, such as local config files, database tables and LDAP servers, and how it's possible to combine the various bits in a single comprehensive authentication tool, as well as providing examples of custom authentication plugins for GeoServer, integrating it in a home grown security architecture.We'll then move on to authorization, describing the GeoServer pluggable authorization mechanism and comparing it with proxy based solution, and check the built in service and data security system, reviewing its benefits and limitations.Finally we'll explore an advanced authentication tool called GeoFence, and see how it can plug into GeoServer to provide graphical configuration abilities for use complex authorization rules over data and OGC services, taking into account spatial filters, attribute filters, attribute hiding as well as cropping raster data to areas of interest. Finally we'll show how using LDAP both GeoFence and GeoServer can use a common users database, simplifying administrators job, and provide some real world examples.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
22:15 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
Found in:

Using FOSS Tools, UAVs and Linear Referencing to Better Manage Federal Levee Data

The U.S. Army Corps of Engineers (USACE) is responsible for thousands of miles of levees in the United States. Over time the agency has developed a very specific way of evaluating levee systems and relationships between their constituent parts. This approach has served USACE well, at least until having to coordinate our internal data structures with additional data managed by other agencies or programs who potentially treat levees in very different ways. Solving this requirement led to a new approach being developed inside the USACE National Levee Database program referred to as Reaches. Based on linear referencing, the Reaches approach combines interactive creation of linear event themes, a graphical linear reference data editor, and user driven symbolization of the data within a single comprehensive web interface. Using a combination of OpenLayers, GeoExt on the client side and Oracle SDO, MapServer and GeoTools on the server, it is optimized both for speed and flexibility, putting the power of the linear referencing approach into the hands of a range of technical and non-technical users. This presentation presents an architectural overview of the system and how FOSS applications were leveraged during development of Reaches. The ability to manage data with a new level of flexibility and interactivity is supported in some cases by our new unmanned aerial vehicle (UAV) imagery pipeline. Flying imagery from altitudes only in the hundreds of feet give us images with resolution down to inches. By stitching these images into geotiff mosaic composites then processing into individual MBTiles databases using TileMill, we get a new level of perspective on construction projects and any other ground conditions, allowing for monitoring change over time at a convenience and price our agency has not previously had available. The full capability of this imagery is brought to light by our custom tile services that are generated down to zoom level 24. This presentation will show how by pairing the new imagery capabilities with the Reaches tools for collecting and storing data, our non-technical users now have access to tools and data normally reserved for the GIS/RS team.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
out of 1 pages


   91 ms - page object
   22 ms - search
   38 ms - highlighting
   29 ms - highlighting/31756
   38 ms - highlighting/31596


AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)