Network isolation
Network isolation is the restriction or separation of network communication so that systems or processes can communicate only across permitted paths or boundaries.
MongoDB 8.0 in Action, Third Edition
Network isolation is the restriction of communication paths so that protected systems are reachable only through permitted network boundaries.
- How it is used
- Protects Atlas clusters by limiting connectivity to approved network paths and trusted sources.
- How deep it goes
- Explains VPC placement, IP access lists, and private endpoints as configuration patterns within defense in depth.
- Examples
- Uses Atlas clusters in VPCs, restricted IP ranges, and private endpoints as concrete isolation configurations.
- What you can do after
- Operate/configure Atlas connectivity using VPCs, IP access lists, and private endpoints as layered controls.
Read how MongoDB 8.0 in Action, Third Edition explains network isolation →
Kubernetes in Action, Second Edition
Network isolation is the restriction of network communication so that a pod can communicate only with explicitly permitted pods.
- How it is used
- Restricts pod-to-pod communication when namespace boundaries alone are insufficient.
- How deep it goes
- Explains default cross-namespace reachability and NetworkPolicy’s purpose, but stops short of policy syntax and implementation.
- Examples
- Demonstrates direct pod access from a worker node and a temporary curl client pod.
- What you can do after
- Evaluate/understand whether namespace boundaries restrict pod connectivity and identify NetworkPolicy as the control mechanism.
Read how Kubernetes in Action, Second Edition explains network isolation →
Related concepts
- proxyuses · A proxy is an intermediary object or component that represents another object or system and mediates interactions with it.
- network policyconfigured by · A network policy is a set of rules that permits or denies network traffic to and from selected workloads or endpoints.
- isolationkind of · Isolation is the separation of components, processes, resources, or contexts to limit interaction, interference, or the propagation of effects between them.
- namespacecontrasts with · A namespace is a naming context or identifier space in which names are defined and resolved, distinguishing them from names in other contexts.
- defense in depthused by · Defense in depth is a security strategy that combines multiple protective controls so that the failure or compromise of one does not eliminate all protection.
- IP access listuses · An IP access list is a set of network addresses permitted to connect to a protected service or deployment.
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