Querying the Container Status

Use a remote terminal to log in to the server where the instruction stream cloud phone is deployed as the instruction stream cloud phone O&M user (for example, root).
Run the following command to switch to the root user:
```
# su - root
```
Run the following command to query containers. The following figure shows the running status of Docker containers.
```
# docker ps -a
```
The preceding figure shows that kbox_25 exited due to some reasons. Delete it to avoid it occupying resources.

Parent topic: Routine O&M