Nessus

  • limited free version
  • run using
    • scan using scans > new scan and choose scan template
    • add target
    • save and start scan
    • export results

OpenVAS

  • free and open-source
  • run using
    • access using web interface
    • configuration > targets to create new target
    • scans > tasks to create new task and choose target
    • scans > reports for findings