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Sessions are established by exchanging packets. The computer establishing the session attempts to make a TCP connection to port 139 on the computer with which the session is to be established. If the connection is made, the computer establishing the session then sends over the connection a "Session Request" packet with the NetBIOS names of the ...
SMB serves as the basis for Microsoft's Distributed File System implementation. SMB relies on the TCP and IP protocols for transport. This combination allows file sharing over complex, interconnected networks, including the public Internet. The SMB server component uses TCP port 445.
SMBrelay receives a connection on UDP port 139 and relays the packets between the client and server of the connecting Windows machine to the originating computer's port 139. It modifies these packets when necessary. After connecting and authenticating, the target's client is disconnected and SMBRelay binds to port 139 on a new IP address. This ...
This command makes use of the SMB (server message block) and the NetBIOS protocol on port 139 or 445. The basic Windows XP configuration enables this functionality by default. Thus users can connect to and disconnect from shared resources such as computers, printers and drives.
This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for bidirectional traffic. TCP usually uses port numbers that match the services of the corresponding UDP implementations, if they exist, and vice versa.
[citation needed] In NBT, the name service operates on UDP port 137 (TCP port 137 can also be used, but rarely is). The name service primitives offered by NetBIOS are: Add name – registers a NetBIOS name. Add group name – registers a NetBIOS "group" name. Delete name – un-registers a NetBIOS name or group name.
A packet-switched network transmits data that is divided into units called packets.A packet comprises a header (which describes the packet) and a payload (the data). The Internet is a packet-switched network, and most of the protocols in this list are designed for its protocol stack, the IP protocol suite.
Samba is a free software re-implementation of the SMB networking protocol, and was originally developed by Andrew Tridgell.Samba provides file and print services for various Microsoft Windows clients [5] and can integrate with a Microsoft Windows Server domain, either as a Domain Controller (DC) or as a domain member.