TCP/UDP Port Finder

Enter port number (e.g. 21), service (e.g. ssh, ftp) or threat (e.g. nimda)
Database updated - March 30, 2016

Search results for "st"

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Port: 256/TCP
256/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • rap
    RAP
    IANA
  • fw1-sync
    Checkpoint Firewall-1 state table sync
    SANS
  • rap
    -
    SANS
  • threat
    [threat] FW1 Certificate/key distribution. VPN clients (SecuRemote) can download keys on this port.
    Bekkoame
  • threat
    [threat] SpBot
    Bekkoame
Port: 264/TCP
264/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • bgmp
    BGMP
    IANA
  •  
    BGMP, Border Gateway Multicast Protocol (Official)
    WIKI
  • bgmp
    -
    SANS
  • threat
    [threat] FW1_topo FW1 can be flooded on this port in order to cause CPU utilization to reach 100% and stopping managers from connecting. However, it requires a fast link and access to that port, probably from the local network.
    Bekkoame
Port: 266/TCP
266/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • sst
    SCSI on ST
    IANA
Port: 266/UDP
266/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • sst
    SCSI on ST
    IANA
Port: 285/TCP
285/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • trojan
    [trojan] Delf. Anti-protection trojan / Remote Access / Keylogger / Steals passwords / Remote peeker / Destructive trojan. Works on Windows NT, 2000 and XP. Aliases: Troj_Delf.D, Backdoor.Delf, Backdoor.ADB
    Simovits
Port: 318/TCP
318/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • pkix-timestamp
    PKIX TimeStamp
    IANA
  •  
    PKIX TSP, Time Stamp Protocol (Official)
    WIKI
Port: 318/UDP
318/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • pkix-timestamp
    PKIX TimeStamp
    IANA
  •  
    PKIX TSP, Time Stamp Protocol (Official)
    WIKI
Port: 413/TCP
413/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • smsp
    Storage Management Services Protocol
    IANA
  • smsp
    -
    SANS
Port: 413/UDP
413/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • smsp
    Storage Management Services Protocol
    IANA
  • smsp
    -
    SANS
Port: 423/TCP
423/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • opc-job-start
    IBM Operations Planning and Control Start
    IANA
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About TCP/UDP ports

TCP port 256 uses the Transmission Control Protocol. TCP is one of the main protocols in TCP/IP networks. TCP is a connection-oriented protocol, it requires handshaking to set up end-to-end communications. Only when a connection is set up user's data can be sent bi-directionally over the connection.
Attention! TCP guarantees delivery of data packets on port 256 in the same order in which they were sent. Guaranteed communication over TCP port 256 is the main difference between TCP and UDP. UDP port 256 would not have guaranteed communication as TCP.
UDP on port 256 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 256 thinks that error checking and correction is not necessary or performed in the application, avoiding the overhead of such processing at the network interface level.
UDP (User Datagram Protocol) is a minimal message-oriented Transport Layer protocol (protocol is documented in IETF RFC 768).
Application examples that often use UDP: voice over IP (VoIP), streaming media and real-time multiplayer games. Many web applications use UDP, e.g. the Domain Name System (DNS), the Routing Information Protocol (RIP), the Dynamic Host Configuration Protocol (DHCP), the Simple Network Management Protocol (SNMP).
TCP vs UDP - TCP: reliable, ordered, heavyweight, streaming; UDP - unreliable, not ordered, lightweight, datagrams.
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