HLN is on the cutting edge in issues relating to security, disaster avoidance and recovery, high availability and server/network design and configuration. We stabilize technical environments by working with other vendors and our clients' information technology support organizations. HLN designs and supports systems using a variety of technologies and architectures, including Microsoft and Java/Open Source (sometimes even together in a single system). We have worked with a number of agencies to migrate systems from proprietary Unix environments to Linux.