[Yandex Cloud documentation](../../index.md) > [Yandex Container Solution](../index.md) > [Concepts](index.md) > Working with the network

# Working with the network

In Container Optimized Image, Docker containers run using a host network interface. All ports opened in a Docker container will also be opened on the host.

All host ports have internet access, enabling you to automatically access the ports of a running Docker container.

## Use cases {#examples}

* [Configuring data output from a Docker container to a serial port](../tutorials/serial-port.md)
* [Running a containerized app in Yandex Serverless Containers](../tutorials/deploy-app-container.md)
* [Transferring logs from Container Optimized Image to Yandex Cloud Logging](../tutorials/coi-fluent-bit-logging.md)