FreeNAS 8 is an open source network attached storage operating system based on FreeBSD. It features a modular rewrite from the original monolithic design and focuses on core NAS functionality. Key features include the ability to create ZFS or UFS volumes, configure file sharing over various protocols, and integrate with LDAP/Active Directory. Version 8.2 introduces a plug-in architecture for additional features and supports multi-path hardware configuration. The configuration workflow involves setting credentials, creating volumes, configuring users/groups, sharing files, and testing access.