Samba，是种用来让UNIX系列的操作系统与微软Windows操作系统的SMB/CIFS（Server Message Block/Common Internet File System）网络协定做链接的自由软件。第三版不仅可访问及分享SMB的文件夹及打印机，本身还可以集成入Windows Server的网域，扮演为网域控制站（Domain Controller）以及加入Active Directory成员。简而言之，此软件在Windows与UNIX系列OS之间搭起一座桥梁，让两者的资源可互通有无。

Samba is a free software re-implementation of the SMB/CIFS networking protocol, and was originally developed by Andrew Tridgell. Samba provides file and print services for various Microsoft Windows clients and can integrate with a Microsoft Windows Server domain, either as a Domain Controller (DC) or as a domain member. As of version 4, it supports Active Directory and Microsoft Windows NT domains.