What uses TCP port 137?

What uses TCP port 137?

Port 137 is utilized by NetBIOS Name 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.

What network application uses port 137 139?

netbios-ns
So Microsoft grabbed a trio of three successive Internet ports 137, 138, and 139, to use for the transport of their existing NetBIOS protocol over IP-based LAN and WAN networks….

Name: netbios-ns
Related Ports: 138, 139, 445

What is the port name for 137?

Service Name and Transport Protocol Port Number Registry

Service Name Port Number Description
netbios-ns 137 NETBIOS Name Service
netbios-ns 137 NETBIOS Name Service
trim 1137 TRIM Workgroup Service
trim 1137 TRIM Workgroup Service

What is the protocol for port 138?

UDP NetBIOS datagrams
GRC | Port Authority, for Internet Port 138. Description: UDP NetBIOS datagrams packets are exchanged over this port, usually with Windows machines but also with any other system running Samba (SMB). These UDP NetBIOS datagrams support non-connection oriented file sharing activities.

Which port is TCP?

Default Port Numbers

Port IP Protocol
25 TCP SMTP
53 TCP & UDP DNS
80 TCP HTTP
161 UDP SNMP

Is ICMP a TCP?

ICMP gives TCP/IP a way to handle errors. Any network device that is using TCP/IP has the capability to send, receive, or process ICMP messages.

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.

How do I check if port 137 is open?

You could try telneting to port 139 from an outside machine. If you get anything other than an access denied, you likely have an open port. You could also try Shields Up; it checks ports 21, 23, 25, 79, 110, 113, 135, 139, 143, 443, 445, and 5000. Linkage: http://grc.com/default.htm (Look under “Hot Spots” section).

What is port 137 used for?

Port(s) Protocol Service Details Source; 137 : tcp,udp: netbios-ns: NetBIOS is a protocol used for File and Print Sharing under all current versions of Windows.

What is the NetBIOS port 137?

Port (s) Protocol Service Details Source 137 tcp,udp netbios-ns NetBIOS is a protocol used for File and SG 137 tcp,udp NetBIOS NetBIOS Name Service (official) Wikipedia 137 tcp trojan Chode, Nimda Trojans 137 udp trojan Bugbear, Msinit, Opaserv, Qaz Trojans

What port numbers are registered withiana?

IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services. Well Known Ports: 0 through 1023. Registered Ports: 1024 through 49151.

What are the TCP ports used for?

TCP ports use the Transmission Control Protocol, the most commonly used protocol on the Internet and any TCP/IP network. TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent.