# 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 harden security for LXD](https://canonical.com/lxd/docs/default/howto/security_harden/index.html.md): To increase the security posture of your LXD deployment, review the following hardening recommendati... ## Optional - [Top-level llms.txt](https://canonical.com/lxd/docs/default/llms.txt): Complete documentation index.