What does server message block mean?

Definitions for server message block
server mes·sage block

This dictionary definitions page includes all the possible meanings, example usage and translations of the word server message block.


  1. Server Message Block

    Server Message Block (SMB) is a communication protocol originally developed in 1983 by Barry A. Feigenbaum at IBM and intended to provide shared access to files and printers across nodes on a network of systems running IBM's OS/2. It also provides an authenticated inter-process communication (IPC) mechanism. In 1987, Microsoft and 3Com implemented SMB in LAN Manager for OS/2, at which time SMB used the NetBIOS service atop the NetBIOS Frames protocol as its underlying transport. Later, Microsoft implemented SMB in Windows NT 3.1 and has been updating it ever since, adapting it to work with newer underlying transports: TCP/IP and NetBT. SMB implementation consists of two vaguely named Windows services: "Server" (ID: LanmanServer) and "Workstation" (ID: LanmanWorkstation). It uses NTLM or Kerberos protocols for user authentication. In 1996, Microsoft published a version of SMB 1.0 with minor modifications under the Common Internet File System (CIFS ) moniker. CIFS was compatible with even the earliest incarnation of SMB, including LAN Manager's. It supports symbolic links, hard links, and larger file size, but none of the features of SMB 2.0 and later. Microsoft's proposal, however, remained an Internet Draft and never achieved standard status. Microsoft has since discontinued use of the CIFS moniker but continues developing SMB and making subsequent specifications publicly available.


  1. Server Message Block

    In computer networking, Server Message Block, also known as Common Internet File System operates as an application-layer network protocol mainly used for providing shared access to files, printers, serial ports, and miscellaneous communications between nodes on a network. It also provides an authenticated inter-process communication mechanism. Most usage of SMB involves computers running Microsoft Windows, where it was known as "Microsoft Windows Network" before the subsequent introduction of Active Directory. Corresponding Windows services are the "Server Service" and "Workstation Service". The Server Message Block protocol can run on top of the Session network layers in several ways: ⁕directly over TCP, port 445; ⁕via the NetBIOS API, which in turn can run on several transports: ⁕on UDP ports 137, 138 & TCP ports 137, 139 — see NetBIOS over TCP/IP; ⁕on several legacy protocols such as NBF.

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  1. Chaldean Numerology

    The numerical value of server message block in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of server message block in Pythagorean Numerology is: 1

Translations for server message block

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"server message block." Definitions.net. STANDS4 LLC, 2024. Web. 22 May 2024. <https://www.definitions.net/definition/server+message+block>.

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