What does running a process inside a network namespace do?
And about running a process inside an isolated network namespace. Running a process there allows us to set specific filters on the specific process. Network namespace allows Linux to clone the network stack and make the new stack available to a limited set of processes.
How to share process namespace in a cluster?
Process Namespace Sharing is enabled using the shareProcessNamespace field of v1.PodSpec. For example: Create the pod nginx on your cluster: Attach to the shell container and run ps:
When to use process namespace sharing in Kubernetes?
When process namespace sharing is enabled, processes in a container are visible to all other containers in that pod. You can use this feature to configure cooperating containers, such as a log handler sidecar container, or to troubleshoot container images that don’t include debugging utilities like a shell.
Why do we share process namespace between pods?
Pods share many resources so it makes sense they would also share a process namespace. Some container images may expect to be isolated from other containers, though, so it’s important to understand these differences: The container process no longer has PID 1.
What happens if I try to connect to a WMI namespace?
If a user tries to connect to a namespace they are not allowed access to, they will receive error 0x80041003. By default, this permission is enabled only for administrators. An administrator can enable remote access to specific WMI namespaces for a nonadministrator user.
Can a nonadministrator enable a remote WMI connection?
An administrator can enable remote access to specific WMI namespaces for a nonadministrator user. The following procedure sets remote enable permissions for a non-administrator user. Connect to the remote computer using the WMI Control. For more information about the WMI Control, see Setting Namespace Security with the WMI Control.
How do I enable remote access to my computer?
To set remote enable permissions Connect to the remote computer using the WMI Control. In the Security tab, select the namespace and click Security. Locate the appropriate account and check Remote Enable in the Permissions list.