SMB (Server Message Block) is a Windows communication protocol that allows users to share files, access print services, and browse across a local area network (LAN). The protocol was first released by IBM in 1983 and Microsoft has since released many newer versions (or dialects), including the now-obsolete CIFS (Common Internet File System).
SMB Versions
The main dialects of SMB include:
- CIFS/SMB 1.0
- SMB 2.0
- SMB 2.1
- SMB 3.0
- SMB 3.02
- SMB 3.1.1