An employee is attempting to access company resources kept on a centralized server. The user has the right permissions but cannot seem to access the share via the network. As the IT technician, you confirm that the workstation is on the same network as the server and that both devices are operational. Which of the following protocols is MOST likely used for sharing files over a network between Windows-based systems, and its corresponding port should be checked for proper configuration on both the client's firewall and the server's firewall?
Server Message Block (SMB)/Common Internet File System (CIFS) is the protocol commonly used for file sharing over a network between Windows-based systems. The default port used for SMB/CIFS is port 445. Ensuring that this port is open on both client and server firewalls is essential for file sharing to work properly. Other ports mentioned might be plausible in different scenarios, for example, FTP uses ports 20 and 21 for file transfer but is not typically the default protocol for Windows file sharing. Additionally, HTTP and HTTPS (ports 80 and 443, respectively) are related to web services and not typically used for Windows network file sharing directly. RDP (Remote Desktop Protocol) operates on port 3389 and is utilized for remote desktop connections, not file sharing.
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What is SMB/CIFS and how does it work?
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What is the significance of port 445?
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How do firewalls affect file sharing protocols like CIFS?