SMB 3.1.1 in Windows Server 2016

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Clients and servers communicate via the SMB protocol to exchange data. In each version of Windows, Microsoft has provided an updated version of SMB, with numerous innovations in the field of security, performance, and stability. Normally, you do not need to make adjustments, except when older operating systems are deployed.

In general, updating file servers, workstations, and other computers that communicate via SMB to Windows Server 2016 and Windows 10 is worthwhile. If it is not possible, you should consider which SMB version is used and what security issues you may be facing. Generally speaking, SMB 3.1.1 in Windows Server 2016 and Windows 10 is slightly more secure than the direct predecessor SMB 3.0.2. The main innovation in SMB 3.1.1 is pre-authentication integrity, which provides end-to end encryption for SMB connections.

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