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Sep 23, 2020 · SMB (Server Message Block) is a client/server protocol that governs access to files and whole directories, as well as other network resources like printers, routers or interfaces open to the network. Information exchange between the different processes of a system (also known as inter-process communication) can be handled based on the SMB protocol.
- SMB Protocol Dialects
- Understanding SMB Protocol Services
- Various SMB Protocol Implementations
- Security Considerations For The SMB Protocol
- Conclusion
The SMB protocol has evolved over time, and its various versions are commonly referred to as dialects. Microsoft continues to work hard to improve SMB with each new version of Windows. The following table shows the SMB dialects used in various Windows versions: As you can see in the table, Windows 11 and Windows Server 2022 still use the SMB 3.1.1 ...
As a client–server protocol, SMB requires a server service (LanmanServer) and a client service (LanmanWorkstation). Every Windows computer, whether it is running a server OS (like Server 2016 or Server 2019) or a client OS (like Windows 10 or Windows 11), has both the LanmanServer and LanmanWorkstation services. You can check the status of both ser...
The SMB protocol is one of the most popular protocols for file and resource sharing over networks. And not only with Windows—it has also been widely adopted by other operating systems, such as Linux/Unix and macOS. Below are some of the most popular implementations of the SMB protocol: 1. CIFS—The common internet file system (CIFS) is Microsoft's i...
Remember the infamous WannaCry and Petya attacks and the EternalBlue exploit? They all lead back to an SMB 1.0 vulnerability, one way or another. Therefore, it is vital to cover some SMB features that you can use to secure SMB communication in your network. We will cover the following best practices to secure SMB communication: 1. Explicitly disabl...
I hope that by reading this article, you will have a good understanding of how the SMB protocol works and the different ways to protect SMB communication in your network. This is not a comprehensive security checklist, but it gives a fair enough idea about a few SMB security measures. In my next post, I will clear up some confusion about the SMB po...
Nov 21, 2023 · Server Message Block (SMB) protocol enables users to access remote servers and resources but is often targeted by hackers for unauthorized data and device access.
Oct 25, 2024 · SMB (Server Message Block) is a protocol that allows users on the same network to share files, access resources like storage and apps, and communicate. It’s widely used in both businesses and homes to streamline and simplify resource sharing. Don’t be put off by the fancy abbreviation — SMB is actually quite straightforward and worth ...
Feb 13, 2024 · Server Message Block, also known as SMB, is a high-level file-sharing protocol jointly developed by Microsoft, IBM, and Intel for passing data between computers on a network. Microsoft Windows and OS/2 use Server Message Block (SMB). Many UNIX operating systems also support it.
The Server Message Block protocol (SMB protocol) is a client-server communication protocol used for sharing access to files, printers, serial ports and other resources on a network. It can also carry transaction protocols for interprocess communication.
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The SMB protocol defines a set of message formats and rules governing the exchange of these messages between clients and servers. It enables clients to read, write, and manage files on remote file systems, as well as request and receive output from remote print queues.
