Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used? Solution: net

The `net` namespace is a core feature for container network isolation, enabled by default, and Docker uses it without requiring specific runtime daemon flags.

The `net` namespace is a standard Linux kernel namespace used for isolating network stacks, enabled by default, and is essential for Docker to provide isolated networking for containers. Docker uses this namespace without requiring any special daemon runtime flags to enable it.