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Diffstat (limited to 'docs/tutorials/basic_networking.md')
| -rw-r--r-- | docs/tutorials/basic_networking.md | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/docs/tutorials/basic_networking.md b/docs/tutorials/basic_networking.md index 396994596..0a6034e7a 100644 --- a/docs/tutorials/basic_networking.md +++ b/docs/tutorials/basic_networking.md @@ -13,13 +13,14 @@ Each setup is supported with an example. ## Differences between rootful and rootless container networking -One of the guiding factors on networking for containers with Podman is going to be -whether or not the container is run by a root user or not. This is because unprivileged -users cannot create networking interfaces on the host. Therefore, with rootful -containers, the default networking mode is to use netavark. -For rootless, the default network -mode is slirp4netns. Because of the limited privileges, slirp4netns lacks some of -the features of networking; for example, slirp4netns cannot give containers a +One of the guiding factors on networking for containers with Podman is going to +be whether or not the container is run by a root user or not. This is because +unprivileged users cannot create networking interfaces on the host. Therefore, +for rootless containers, the default network mode is slirp4netns. Because of the +limited privileges, slirp4netns lacks some of the features of networking +compared to rootful Podman's networking; for example, slirp4netns cannot give +containers a routable IP address. The default networking mode for rootful +containers on the other side is netavark, which allows a container to have a routable IP address. ## Firewalls @@ -93,6 +94,22 @@ When rootless containers are run, network operations will be executed inside an extra network namespace. To join this namespace, use `podman unshare --rootless-netns`. +#### Default Network + +The default network `podman` with netavark is memory-only. It does not support dns resolution because of backwards compatibility with Docker. To change settings, export the in-memory network and change the file. + +For the default rootful network use +``` +podman network inspect podman | jq .[] > /etc/containers/networks/podman.json +``` + +And for the rootless network use + +``` +podman network inspect podman | jq .[] > ~/.local/share/containers/storage/networks/podman.json +``` + + #### Example By default, rootful containers use the netavark for its default network if |