Explore the fundamentals of vulnerability scanning in this 41-minute conference talk from LISA19. Gain insights into the essential knowledge required for effective vulnerability scanning, including software vulnerabilities, exploitation techniques, networking principles, and familiarity with scanning tools. Learn why system administrators' involvement in the vulnerability scanning process is crucial and how it can improve overall security outcomes. Discover the basics needed to start participating in vulnerability assessments and understand how to inspect servers and applications effectively. Presented by Tabitha Sable, this talk provides a valuable introduction for sysadmins looking to expand their role in cybersecurity efforts.