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# Using the dnsname plugin with Podman
The *dnsname* plugin allows containers to resolve each other by name. The plugin adds each
container's name to an instance of a dnsmasq server. The plugin is enabled through adding it to a network's
CNI configuration. The containers will only be able to resolve each other if they are on the same CNI network.
**Note**: This plugin does not work with rootless containers.
This tutorial assumes you already have Podman, containernetworking-plugins, and a golang development environment installed.
## Install dnsmasq
Using your package manager, install the *dnsmasq* package. For Fedora, this would be:
`sudo dnf install dnsmasq`
## Build and install
1. using git, clone the *github.com/containers/dnsname* repository.
2. make install PREFIX=/usr -- this will install the dnsname plugin into /usr/libexec/cni where your CNI plugins
should already exist.
## Configure a CNI network for Podman
1. Create a new network using `podman network create`. For example, `podman network create foobar` will suffice.
The following example [configuration file](example/cni-podman1.conflist) shows a usable example for Podman.
## Example: container name resolution
1. sudo podman run -dt --name web --network foobar quay.io/libpod/alpine_nginx:latest
5139d65d22135e9ecab511559d863754550894a32285befd94dab231017048c2
Note: we use the --network foobar here. Also, in this test image, the nginx server will respond with
*podman rulez* on an http request.
2. sudo podman run -it --name client --network cni-podman1 quay.io/libpod/alpine_nginx:latest curl http://web/
podman rulez
## Enabling name resolution on the default Podman network
After making sure the *dnsplugin* is functioning properly, you can add name resolution to your default Podman
network. This can be done two different ways:
1. Add the *dnsname* plugin as described in above to your default Podman network. This default network is
usually `/etc/cni/net.d/87-podman-bridge.conflist`.
2. Add a new network as described above and then edit `/etc/containers/libpod.conf` and change the
`cni_default_network` key to your network name.
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