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Port 9001 Details

known port assignments and vulnerabilities
threat/application/port search:
Port(s) Protocol Service Details Source
9001 tcp,udp games Citrix HTML5 video redirection WebSocketService listens on port 9001 TCP.

Microsoft SharePoint authoring environment, Cisco-xremote router configuration, Tor network default, DBGp (TCP), HSQLDB default port (TCP).

Games using this port: Asheron's Call uses port 9001 UDP.

Buffer overflow in the lm_tcp service in Invensys Wonderware InBatch 8.1 and 9.0, as used in Invensys Foxboro I/A Series Batch 8.1 and possibly other products, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted request to port 9001.
References: [CVE-2010-4557], [EDB-15707]

ETL Service Manager (IANA official)
9001 tcp,udp Cisco-xremote router configuration (unofficial) Wikipedia
9001 tcp,udp Tor network default (unofficial) Wikipedia
9001 tcp DBGp Proxy (unofficial) Wikipedia
9000-9001, 9004-9005, 9012-9013 udp applications Asherons Call Portforward
9001 udp applications Eyeon Portforward
9000-9001,9010 tcp applications JetCast Portforward
9001 tcp tor-orport Tor ORPort Nmap
9001 tcp,udp etlservicemgr ETL Service Manager, registered 2002-03. Known Unauthorized Use on port 9001 IANA
9 records found
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Related ports: 9000  9004  9005  9008  9012  9013  

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External Resources
SANS Internet Storm Center: port 9001

Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. 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.
Dynamic/Private : 49152 through 65535.

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. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming and realtime gaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

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