Windows File Sharing with SMB: Port 445, 139, 138, and 137
2023年2月20日 · SMB is the most prevalent protocol for sharing files on Windows. This article examines how Windows file sharing works over ports 445, 139, 138, and 137.
Detect, enable, and disable SMBv1, SMBv2, and SMBv3 in Windows
2025年3月11日 · This article describes how to enable and disable Server Message Block (SMB) version 1 (SMBv1), SMB version 2 (SMBv2), and SMB version 3 (SMBv3) on SMB client and …
SMB port number: Ports 445, 139, 138, and 137 explained
2022年4月20日 · The SMB port number is TCP 445. If you've heard people saying the port number is 139, they could be partially correct. Let’s understand the SMB ports 445, 139, 138, …
Server Message Block - Wikipedia
Server Message Block (SMB) is a communication protocol [1] used to share files, printers, serial ports, and miscellaneous communications between nodes on a network.
SMB - File and printer sharing ports should be open
2023年3月21日 · Learn how to keep file and printer sharing ports open for Server Message Block (SMB)-based network services and resolve the Best Practices Analyzer scan issue.
What is an SMB Port + Ports 445 and 139 Explained - Varonis
2023年9月14日 · An SMB port is a network port commonly used for file sharing. IBM programmer Barry Feigenbaum developed the Server Message Blocks (SMB) protocol in the 1980s for IBM …
What is an SMB Port? A Detailed Description of Ports 445 + 139
2025年1月2日 · SMB is a network file sharing protocol that requires an open port on a computer or server to communicate with other systems. SMB ports are generally port numbers 139 and …
What are SMB Ports, Port 139 and Port 445? - blog.netwrix.com
2024年9月27日 · The SMB (Server Message Block) port is a network port primarily utilized for file and resource sharing across a computer network. SMB operates over TCP port 445 and …
What is SMB | What is SMB Port Numbers 135 and 445 - MonoVM
2024年2月6日 · The Server Message Block (SMB) protocol is a network communication protocol designed for sharing access to files, printers, serial ports, and miscellaneous communications …
What is an SMB Port: Ports 139 & 445 Explained - Cyphere
2021年3月26日 · The default SMB ports are port 445 (TCP) for SMB over TCP/IP and port 139 (TCP) for SMB over NetBIOS. Securing SMB ports is crucial for maintaining network security …