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Networking overview | Docker Docs

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Container networking refers to the ability for containers to connect to and communicate with each other, or to non-Docker workloads. Containers have networking enabled by default, and they can make outgoing connections. A container has no information about what kind of network it's attached to, or whether their peers are also Docker workloads or not. A container only sees a network interface with an IP address, a gateway, a routing table, DNS services, and other networking details. That is, unless the container uses the none network driver. This page describes networking from the point of view of the container, and the concepts around container networking. This page doesn't describe OS-specific details about how Docker networks work. For information about how Docker manipulates iptables rules on Linux, see Packet filtering and firewalls. You can create custom, user-defined networks, and connect multiple containers to the same network. Once connected to a user-defined network, container

# Networking overview Container networking refers to the ability for containers to connect to and communicate with each other, and with non-Docker network services. Containers have networking enabled by default, and they can make outgoing connections. A container has no information about what kind of network it's attached to, or whether its network peers are also Docker containers. A container only sees a network interface with an IP address, a gateway, a routing table, DNS services, and other networking details. This page describes networking from the point of view of the container, and the c

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