Open source VPN for the Dutch government (and others). OpenVPN-NL is an OpenVPN variant aimed at use by the Dutch government, and has been ceritfied for networks with a classification up to the level 'Departmentaal Vertrouwelijk' (something like 'For Official Use Only'). This talk will be about what we did to get it approved, how we contribute to the community and some of the vulnerabilities we found along the way.