Network Defense Essentials (NDE) 2025 – 400 Free Practice Questions to Pass the Exam

A common practice to protect Docker containers emphasizes the principle of least privilege, where actions and permissions are limited to only those that are absolutely necessary for the function of the container. This approach helps minimize potential vulnerabilities and reduces the risk of exploitation.

By limiting capabilities based on requirements, you can effectively restrict what processes within the container can do. This means that if a container is compromised, the attacker’s ability to carry out harmful actions is significantly constrained. For instance, if a container does not need access to the host network or specific devices, those capabilities can be disabled. This reduces the attack surface and enhances the overall security posture of your cloud infrastructure.

While applying security patches regularly is essential for maintaining secure environments, it does not inherently modify the operational capabilities of the containers in the way that limiting capabilities does. The focus here is on actively managing permissions to mitigate risks, making this practice a crucial part of securing Docker containers.