The primary mission of the Restena Foundation is to interconnect and deliver services to organizations active in research and education, health, culture or administration in Luxembourg. In this role it delivers essential network and security services to its community, supporting Luxembourg's ambitions for research and education. It manages and develops a dedicated national network infrastructure connecting over 500 organizations at a bandwidth of up to 100Gbps. The same organizations can benefit from a Computer Security Incident Response Team (CSIRT) and associated services such as Domain Name System (DNS), email, hosting of physical and virtual machines or web sites. The Restena Foundation also supports research and education stakeholders in Luxembourg by being a center of excellence in carrying out its various projects. As an example, members of the community have Internet access on the premises of research or educational institutions worldwide through the eduroam project. For the benefit of a wider audience, the Restena Foundation operates two essential national infrastructures. On one hand, it is responsible for the Internet country code top-level domain (ccTLD) in Luxembourg domain name registration infrastructure (.LU) with over 100,000 registered domain names (dns.lu). Additionally, it manages most of the technical operations of the Luxembourg Commercial Internet exchange (LU-CIX) platform that provides a robust and fast infrastructure enabling Internet service providers to directly exchange data between their networks while taking advantage of both content providers and international operators located in Luxembourg.