About | Contact Technical Education Video Series The LEARN web site of the NSRC provides educational content about technical Internet topics with a mix of video clips, accompanying reference documents and command line examples. Previous Next Training Videos perfSONAR perfSONAR is a tool for end-to-end monitoring and troubleshooting of multi-domain network performance. 15 Videos ScienceDMZ The Science DMZ is a portion of the network optimized for high-performance scientific applications. 12 Videos FedIdM A well-designed identity management system is imperative to campus networks as well as students and faculty. 15 Videos