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 "sans"

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Port: 23/UDP
23/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • telnet
    Telnet
    IANA
  • telnet
    -
    SANS
  • telnet
    [threat] Telnet
    Bekkoame
Port: 24/TCP
24/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  •  
    any private mail system
    IANA
  •  
    Priv-mail : any private mail system. (Official)
    WIKI
  • priv-mail
    any private mail system
    SANS
  • bo2kcontrolport
    [trojan] Back Orifice 2000 (BO2K) Control Port
    SANS
Port: 24/UDP
24/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    any private mail system
    IANA
  •  
    Priv-mail : any private mail system. (Official)
    WIKI
  • priv-mail
    any private mail system
    SANS
Port: 26/TCP
26/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • altavista-fw97
    AltaVista Firewall97
    SANS
  • threat
    [threat] W32.Netsky
    Bekkoame
Port: 27/TCP
27/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • nsw-fe
    NSW User System FE
    IANA
  •  
    NSW User System FE (Official)
    WIKI
  • altavista-fw97
    AltaVista Firewall97
    SANS
  • trojan
    [trojan] Assasin. Anti-protection trojan / Remote Access / Keylogger / LAN trojan. Works on Windows 95, 98, ME, NT, 2000 and XP. Aliases: A.s.s.A'sin', Backdoor.Assasin, BackDoor.AGS
    Simovits
Port: 28/TCP
28/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • altavista-fw97
    AltaVista Firewall97
    SANS
  • trojan
    [trojan] Amanda. Remote Access / Keylogger / Steals passwords / ICQ trojan. Works on Windows 95 and 98, together with ICQ. Amanda installs under Windows NT, but is not able to run. Aliases: Backdoor.Amanda
    Simovits
Port: 29/TCP
29/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • msg-icp
    MSG ICP
    IANA
  •  
    MSG ICP (Official)
    WIKI
  • altavista-fw97
    AltaVista Firewall97
    SANS
Port: 30/TCP
30/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • threat
    [threat] Agent 40421
    Bekkoame
  • agent40421
    [trojan] Agent 40421
    SANS
  • trojan
    [trojan] Agent 40421. Backdoor. Works on Windows Windows 95, 98 and ME. Opens port 40421 for Master's Paradise 8.5.
    Simovits
Port: 31/TCP
31/TCP - Known port assignments (8 records found)
  • Service
    Details
    Source
  • msg-auth
    MSG Authentication
    IANA
  • threat
    [threat] Agent 31, Hackers Paradise, Masters Paradise
    Bekkoame
  • agent31
    [trojan] Agent 31
    SANS
  • mastersparadise
    [trojan] Masters Paradise
    SANS
  • trojan
    [trojan] Agent 40421. Backdoor. Works on Windows Windows 95, 98 and ME. Opens port 40421 for Master's Paradise 8.5.
    Simovits
  • trojan
    [trojan] Masters Paradise. Remote Access. Works on Windows 95, 98 and NT. Aliases: Masters Paradise 98, Paradise Agent, Paradise trojan, Backdoor.MasterP
    Simovits
  • hackersparadise
    [trojan] Hackers Paradise
    SANS
  • trojan
    [trojan] Skun. Remote Access / Destructive trojan. Works on Windows. Aliases: Backdoor.Skun
    Simovits
Port: 35/TCP
35/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    any private printer server
    IANA
  •  
    Any private printer server protocol (Official)
    WIKI
  • priv-print
    any private printer server
    SANS
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About TCP/UDP ports

TCP port 23 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 23 in the same order in which they were sent. Guaranteed communication over TCP port 23 is the main difference between TCP and UDP. UDP port 23 would not have guaranteed communication as TCP.
UDP on port 23 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 23 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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