# LXD > This is the documentation for LXD, a system container and virtual machine manager. 2014-2026 AGPL-3.0, LXD contributors ## Pages in this subsection - [How to configure a network](https://canonical.com/lxd/docs/default/howto/network_configure/index.html.md): To configure an existing network, use either the `lxc network set` and `lxc network unset` commands ... ## Optional - [Top-level llms.txt](https://canonical.com/lxd/docs/default/llms.txt): Complete documentation index.