Is it possible to dynamically update the DNS parameters of a container via command line?

It is not possible to dynamically update DNS parameters of a running container directly through standard Docker CLI commands, as network and DNS settings are specified at container creation.

If you need to change the DNS servers for a container, the usual approach is:

1. Stop and remove the current container.
2. Launch a new container with the desired DNS settings using the --dns option. For example:

docker run --dns 8.8.8.8 --dns 8.8.4.4 ... your_image

For dynamic network configuration management, more advanced orchestration tools like Kubernetes can be used, where configurations can be changed and reapplied.

Overall, changing DNS without restarting the container is not supported by standard Docker tools.