SMB Settings | SMB Service (2024)

FAQs

How to solve SMB error? ›

Correctly enter the IP address of the PC, which contains the shared folder, in the SMB Address Book setting. If you are operating as a domain user, create a domain user name that is different from the local user name. If your domain user name is the same as the local user name, use the same password for both.

The Server Message Block (SMB) protocol is a network file sharing protocol that allows applications on a computer to read and write to files and to request services from server programs in a computer network.

Minimum SMB protocol: Depending on your network configuration, set the earliest SMB protocol that will be supported by your Synology NAS. We strongly advise against using SMB1 because this older protocol has known security issues related to ransomware and other malware.

Features. Server Message Block (SMB) enables file sharing, printer sharing, network browsing, and inter-process communication (through named pipes) over a computer network. SMB serves as the basis for Microsoft's Distributed File System implementation. SMB relies on the TCP and IP protocols for transport.

We recommend keeping SMBv2 and SMBv3 enabled, but you might find it useful to disable one temporarily for troubleshooting. For more information, see How to detect status, enable, and disable SMB protocols on the SMB Server.

Under the More Windows features panel, scroll to the SMB Direct selection and ensure it is checked. You may need to restart your Windows system after performing this change for it to take effect.

While port 139 and 445 aren't inherently dangerous, there are known issues with exposing these ports to the Internet. You can check if a port is open by using the netstat command. There is a common misconception that an open port is dangerous.

SMB Service

SMB (Server Message Block) protocol allows Windows, Mac, and Linux clients with SMB/CIFS support to access data stored on your Synology NAS. SMB Settings: Enable this function to browse files on your Synology NAS via Windows Explorer or mount shared folders as network drives.

Why is SMB needed? ›

The SMB protocol enables applications and their users to access files on remote servers, as well as connect to other resources, including printers, mailslots and named pipes. SMB provides client applications with a secure and controlled method for opening, reading, moving, creating and updating files on remote servers.

Concurrent access to the same files or directories from many SMB connections on multiple nodes can result in scalability problems. Symbolic links cannot be created or changed from SMB clients and are not reported as symbolic links.

Should I Use CIFS or SMB? The majority of modern storage systems use SMB 2.0, 3.0, or higher. Microsoft strongly recommends users disable CIFS/SMB1 despite compatibility issues this may cause among old devices and software.

SMB is safest when users: Don't use SMB 1.0, as it lacks encryption protocols. Use SMB 3.0 or later to keep files and users secure. Only allow other trusted and authorized users to access SMB shares.

Step 1: Open control panel Step 2: Navigate to programs and features. Step 3: Click on "Turn Windows features on or off. Step 4: Disable "(Server Message Block) SMB v1"Step 5 : Click ok.

Enabling SMB Signing via Group Policy

Within the policy navigate to Computer Configuration > Policies > Windows Settings > Security Settings > Local Policies > Security Options. There are 4 policy items that can be modified depending on your needs. All of these policy items can either be enabled or disabled.