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SMB (Server Message Blocks)
Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM.
SMB is a high-level file-sharing protocol for exchanging information in the Microsoft Windows network environment. It is the native file-sharing protocol for Windows 95, Windows 98, Windows NT, and OS/2 operating system environments. It is also used in pre-Windows 95 versions of the Windows operating system for file sharing across networks. The new CIFS (Common Internet File System), which allows file sharing across the Internet or intranet, is based on SMB. SMB is also widely available in the UNIX and VMS environments in the form of Samba. See "Samba" for more information.
SMB provides redirector services that allow a client to locate files on other network computers running SMB and open, read, write to, and delete those files. NetBIOS is used to establish logical connections, or sessions, between networked computers. NetBIOS also uses a unique logical name to identify workstations on the network. Once a session is established, a two-way conversation takes place in which the following types of SMB messages are exchanged:
Copyright (c) 2001 Tom Sheldon and Big Sur Multimedia.