This tutorial explains how to perform security scanning in air-gapped environments using GitLab's various security scanners. Air-gapped environments are isolated from unsecured networks, enhancing security by preventing external cyber threats. The article covers the setup of GitLab security scanners, the process to manage container images without internet access, and how to run vulnerability scans effectively. It includes practical steps for configuring firewall rules, transferring images, and interpreting vulnerability reports generated after scans.