SAMBA uses
ports 137 – 139 and 445
.
Does Samba use UDP or TCP?
Samba UDP Ports
The NetBIOS Name service operates on
UDP port 137
. When you use the Samba nmblookup utility or the Windows nbtlookup utility to look up names, you are generating traffic on port 137. UDP port 138 carries what is called the NetBIOS Datagram Service.
How do I know my samba port?
To identify ports and network interfaces your Samba domain member is listening on, run:
# netstat -tulpn | egrep “smbd|nmbd|winbind” tcp 0 0 127.0. 0.1:139 0.0
.
Is SMB port 445 TCP or UDP?
SMB is available
directly over TCP
(port 445) and over NetBIOS over TCP/IP (port 139). Other ports you may see connected with NetBIOS communications are port 137 (nbname) and port 138 (nbdatagram) over User Datagram Protocol.
What are ports 137 and 138 used for?
Ports 137, 138, and 139 are used by
NetBIOS
, which does not support IPv6. CIFS is required for Windows file service. You can disable CIFS by issuing the cifs terminate command on your storage system console.
Is port 139 UDP or TCP?
| Port(s) Protocol Service | 139 tcp,udp netbios-ss | 139 tcp,udp | 139 tcp trojan | 139 tcp Chode |
|---|
Does SNMP use UDP?
Typically, the SNMP protocol is implemented using
the User Datagram Protocol (UDP)
. UDP is a connectionless protocol that works like the Transmission Control Protocol (TCP) but assumes that error-checking and recovery services are not required.
What is port 139 commonly used for?
Port 139 is utilized by
NetBIOS Session service
. Enabling NetBIOS services provide access to shared resources like files and printers not only to your network computers but also to anyone across the internet.
Does SAMBA need port 139?
SAMBA uses
ports 137 – 139
and 445.
What is the difference between SMB and SAMBA?
SAMBA was originally SMB Server – but the name had to be changed due to SMB Server being an actual product. SMB was the predecessor to
CIFS
. SMB (Server Message Block) and CIFS (Common Internet File System) are protocols. Samba implements CIFS network protocol.
Is NetBIOS an SMB?
SMB does rely on NetBIOS for communication with devices that do not support direct hosting of SMB over TCP/IP.
NetBIOS is completely independent from SMB
. It is an API that SMB, and other technologies can use, so NetBIOS has no dependency to SMB.
Can we change SMB port?
Port 445 is used by Windows for SMB Direct over TCP/IP. According to this answer on Unix & Linux Stack Exchange,
the port can’t be changed
: This can’t be done. Windows does not support TCP ports other than 445/139.
What is UDP port 445 used for?
Side note: UDP port 445 uses the
Datagram Protocol
, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 445 makes possible the transmission of a datagram message from one computer to an application running in another computer.
Is port 135 a NetBIOS?
| Port Protocol Service | 135 TCP MS-RPC endpoint mapper | 137 UDP NetBIOS Name Service | 138 UDP NetBIOS Datagram Service | 139 TCP NetBIOS Session Service |
|---|
What ports does NetBIOS use?
- nbname: 137/UDP.
- nbname: 137/TCP.
- nbdatagram: 138/UDP.
- nbsession: 139/TCP.
Why is NetBIOS still used?
Microsoft Windows still uses it for its name resolution function (often by default), when DNS is not available. Network resiliency and access to resources is a good thing, but keeping NetBIOS enabled for that reason, is not. …
NetBIOS is used for name resolution and communication on a local network
.
