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Port 9103 Details

known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
9103 udp games Supreme Commander, Tom Clancy's Splinter Cell: Conviction, Settlers 7
Blood Bowl also uses this port (TCP/UDP)
9103 tcp prometheus 9103/tcp - Prometheus Collectd exporter.
Prometheus (open-source system monitoring) uses these TCP ports: 9090 (server), 9091 (Pushgateway), 9093 (Alertmanager), 9094 (Alertmanager clustering), 9100-9563 - Prometheus exporters. See: Prometheus default port allocations on GitHub.
9103 tcp,udp Bacula Storage Daemon (official) Wikipedia
9103,28999,30400 tcp,udp applications Silverfall Portforward
7776, 8888-8891, 8878, 9011, 9102-9103, 9106-9107, 41006, 44000, 45000-45001 udp applications Spliter Cell Chaos Theory Portforward
7776, 8888-8891, 8878, 9011, 9102-9103, 9106-9107, 27243-27245, 41006, 44000, 45000-45001 udp applications Spliter Cell Chaos Theory w AllSeeingEye Portforward
6112,9103,30350-30351 udp applications Supreme Commander Portforward
9103 tcp jetdirect HP JetDirect card Nmap
9103 tcp,udp bacula-sd Bacula Storage Daemon, registered 2002-01 IANA
9 records found
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Related ports: 3544  9100  13005  13200  9090  

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External Resources
SANS Internet Storm Center: port 9103

Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol. TCP is the most commonly used protocol on the Internet and any TCP/IP network. Whereas the IP protocol deals only with packets, 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, a communications protocol for the Internet network, transport, and session layers. Like TCP (Transmission Control Protocol), UDP is used with IP (the Internet Protocol) and makes possible 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, 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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