![]() The CIFS protocol refers to a dialect that was implemented in the Windows NT4 operating system.ĬIFS was created jointly by the Samba Team developers, the independent community, and Microsoft. The set of message packages that define a particular protocol version is called a dialect. The Server Message Block protocol is a network file sharing protocol implemented in Microsoft Windows known as the Microsoft SMB Protocol. In addition, the system uses AES-128 encryption in Galois counter mode (GCM). SMB 3.1.1 has expanded a series of pre-authentication protocols based on SHA-256 hash values. This version of the protocol also aims to increase the performance and security of SMB connections. It was originally called SMB 2.2 but was later changed to SMB 3.0. In 2012 with the new version of the Microsoft OS came a new version of Server Message Block. In addition to a number of minor performance optimizations, it provided new locking mechanisms to regulate access control more efficiently. Version 2.1 of the SMB protocol is closely related to Windows 7. Although the protocol - now known as SMB 2.0 - continued to be proprietary, the software company also released a specification for the first time that allows other systems to interact with Windows operating systems. The first major edition of Server Message Block was released by Microsoft in November 2006 with Windows Vista. ![]() In this first variant, communication was still carried out via the NetBIOS interface, as well as via UDP ports 137 and 138, and also via TCP port 139. The first version of the network communication protocol is often equated to the Common Internet File System version. They begin with SMB 1.0 and end with the current version of SMB 3.1.1. Since the SMB was first released in 1983, numerous changes have been made to the network standard, reflected in various versions of the protocol. It includes all possible operations to work with files and printers that you use on a regular computer. SMB supports easy messaging with the following functions: send a simple message, send a broadcast message, send the beginning of the message block, send the text of the message block, send the end of the message block, send username, cancel the shipment, get the name of the machine.Īt a high level, the representation of the SMB protocol is quite simple. ![]() The workstation can queue files on the server and obtain print queue information. File access.The workstation can access the file server with requests to create and delete directories, create, open and close files, rename and delete files, search for files, retrieve files, install files.Creating and breaking a logical channel between a workstation and the network resources of a file server. The SMB function includes the following operations: The SMB protocol, which corresponds to the appropriate and representative levels of the OSI model, regulates the interaction of the workstation with the server. What types of services are represented by SMB protocol It is designed to perform the functions of file and printer sharing, user authorization, and messaging. In a Microsoft Windows network environment, SMB was the primary application layer protocol for working with LAN resources. The SMB protocol was promoted by Microsoft Corporation, including its support in its products. The reason is that Microsoft did not publish the SMB specification and its add-ons, Samba creator Andrew Tridgell had to reverse engineer the protocol based on packet analysis. In 1992, Samba appeared on the market as a free implementation of the SMB protocol for UNIX-like OSes. Client computers may have their own storage media but also have access to resources provided by the server for general use. Servers provide file systems and other resources (printers, mail segments, named pipes, and so on) to be shared on the network. SMB is a protocol based on client-server technology that provides an easy way for client applications to read and write files and request services from server programs in various types of network environments. Nowadays, SMB is associated mainly with Microsoft Windows OSes, where it is used to implement the "Microsoft Windows Network" and "File and Printer Sharing". The first version of the SMB protocol, also known as the Common Internet File System (CIFS), was created by IBM, Microsoft, Intel, and 3Com in the 1980s the second (SMB 2.0) was created by Microsoft and appeared in Windows Vista. What is SMB protocol: key points and interesting information
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