What are ports 139 and 445 used for?
What are ports 139 and 445 used for?
What are Ports 139 and 445? 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 445. Port 139 is used by SMB dialects that communicate over NetBIOS.
What ports do I need to enable connectivity over 49152?
If your computer network environment uses only Windows Server 2008 R2, Windows Server 2008, Windows 7, or Windows Vista, you must enable connectivity over the high port range of 49152 through 65535.
What is the difference between SMB port 139 and 445?
SMB ports are generally port numbers 139 and 445. Port 139 is used by SMB dialects that communicate over NetBIOS. It’s a transport layer protocol designed to use in Windows operating systems over a network. Port 445 is used by newer versions of SMB (after Windows 2000) on top of a TCP stack, allowing SMB to communicate over the Internet.
How are serviceservice names and port numbers assigned?
Service names are assigned on a first-come, first-served process, as documented in [ RFC6335 ]. Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535); the difference uses of these ranges is described in [ RFC6335 ].
What is port 445 used for in SMB?
It’s a transport layer protocol designed to use in Windows operating systems over a network. Port 445 is used by newer versions of SMB (after Windows 2000) on top of a TCP stack, allowing SMB to communicate over the Internet. This also means you can use IP addresses in order to use SMB like file sharing.
Service names are assigned on a first-come, first-served process, as documented in [RFC6335]. Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535); the difference uses of these ranges is described in [RFC6335].
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