TCP/UDP Port Finder

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Database updated - March 30, 2016

Search results for "tr"

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Port: 103/TCP
103/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • gppitnp
    Genesis Point-to-Point Trans Net
    IANA
  • trojan
    [trojan] Skun. Remote Access / Destructive trojan. Works on Windows. Aliases: Backdoor.Skun
    Simovits
Port: 103/UDP
103/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • gppitnp
    Genesis Point-to-Point Trans Net
    IANA
Port: 105/TCP
105/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • csnet-ns
    Mailbox Name Nameserver
    IANA
  •  
    CCSO Nameserver Protocol (Qi/Ph) (Official)
    WIKI
  • cso
    CCSO name server protocol
    Bekkoame
  • trojan
    [trojan] NerTe. Remote Access / Keylogger / Steals passwords. Works on Windows 95, 98, ME, NT and 2000. Aliases: Backdoor.NerTe, Backdoor.SG
    Simovits
Port: 106/TCP
106/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • 3com-tsmux
    3COM-TSMUX
    IANA
  • pop3pw
    Eudora compatible PW changer
    SANS
  • 3com-tsmux
    Password Server. Mac OS X Server Password Server
    Apple
  • 3com-tsmux
    (Unregistered Use).
    Apple
  • poppassd(epass)
    [threat] allows passwords to be changed on POP servers. Traditionally, users would have to have shell (Telnet) accounts on the servers in order to change their passwords. This allows users with just POP access to change their passwords.
    Bekkoame
Port: 107/TCP
107/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • rtelnet
    Remote Telnet
    SANS
  • rtelnet
    Remote Telnet Service
    IANA
  •  
    Remote TELNET Service protocol (Official)
    WIKI
  • trojan
    [trojan] Skun. Remote Access / Destructive trojan. Works on Windows. Aliases: Backdoor.Skun
    Simovits
Port: 109/TCP
109/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • pop2
    Post Office Protocol - Version 2
    IANA
  •  
    Post Office Protocol v2 (POP2) (Official)
    WIKI
  • pop-2
    PostOffice V.2
    SANS
  • trojan
    [trojan] ADM worm. Worm / Rootkit / Backdoor. Works on Unix (Linux). Affects Linux RedHat 4.0 to 5.2. Aliases: ADM Inet w0rm, Linux.ADM.Worm
    Simovits
Port: 110/TCP
110/TCP - Known port assignments (10 records found)
  • Service
    Details
    Source
  • pop3
    Post Office Protocol - Version 3
    IANA
  •  
    Post Office Protocol v3 (POP3) (Official)
    WIKI
  • pop-3
    PostOffice V.3
    SANS
  • pop3
    Post Office Protocol (POP3). Mail (for receiving email)
    Apple
  • pop3
    Authenticated Post Office Protocol (APOP).
    Apple
  • trojan
    [trojan] ADM worm. Worm / Rootkit / Backdoor. Works on Unix (Linux). Affects Linux RedHat 4.0 to 5.2. Aliases: ADM Inet w0rm, Linux.ADM.Worm
    Simovits
  • promailtrojan
    [trojan] ProMail trojan
    SANS
  • threat
    [threat] Bancos
    Bekkoame
  • threat
    [threat] Civcat
    Bekkoame
  • threat
    [threat] ProMail trojan
    Bekkoame
Port: 111/TCP
111/TCP - Known port assignments (6 records found)
  • Service
    Details
    Source
  • sunrpc
    SUN Remote Procedure Call
    IANA
  •  
    ONC RPC (SunRPC) (Official)
    WIKI
  • sunrpc
    portmapper rpcbind
    SANS
  • sunrpc
    Remote Procedure Call (RPC). Portmap (sunrpc)
    Apple
  • trojan
    [trojan] ADM worm. Worm / Rootkit / Backdoor. Works on Unix (Linux). Affects Linux RedHat 4.0 to 5.2. Aliases: ADM Inet w0rm, Linux.ADM.Worm
    Simovits
  • trojan
    [trojan] MscanWorm.
    Simovits
Port: 112/TCP
112/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • mcidas
    McIDAS Data Transmission Protocol
    IANA
Port: 112/UDP
112/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • mcidas
    McIDAS Data Transmission Protocol
    IANA
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About TCP/UDP ports

TCP port 103 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 103 in the same order in which they were sent. Guaranteed communication over TCP port 103 is the main difference between TCP and UDP. UDP port 103 would not have guaranteed communication as TCP.
UDP on port 103 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 103 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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