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 "fi"

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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: 257/TCP
257/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • set
    Secure Electronic Transaction
    IANA
  • fw1
    Checkpoint Firewall-1
    SANS
  • threat
    [threat] FW1 logging
    Bekkoame
Port: 258/TCP
258/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • fw1
    Checkpoint Firewall-1
    SANS
  • threat
    [threat] FW1 Remote control over policy editing.
    Bekkoame
Port: 261/TCP
261/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • nsiiops
    IIOP Name Service over TLS/SSL
    IANA
  • fw1-mgmt
    Checkpoint Firewall-1 Management
    SANS
  • nsiiops
    IIOP Name Service over TLS SSL
    SANS
Port: 445/TCP
445/TCP - Known port assignments (38 records found)
  • Service
    Details
    Source
  •  
    Microsoft-DS Active Directory, Windows shares (Official)
    WIKI
  •  
    Microsoft-DS SMB file sharing (Official)
    WIKI
  • microsoft-ds
    Win2k+ Server Message Block
    SANS
  • microsoft-ds
    Microsoft SMB Domain Server.
    Apple
  • microsoft-ds
    Microsoft-DS
    IANA
  • threat
    [threat] W32.Aizu
    Bekkoame
  • threat
    [threat] W32.Bobax
    Bekkoame
  • threat
    [threat] W32.Bolgi.Worm
    Bekkoame
  • threat
    [threat] W32.Cissi
    Bekkoame
  • threat
    [threat] W32.Cycle
    Bekkoame
  • threat
    [threat] W32.Explet
    Bekkoame
  • threat
    [threat] W32.HLLW.Deborms
    Bekkoame
  • threat
    [threat] W32.HLLW.Deloder
    Bekkoame
  • threat
    [threat] W32.HLLW.Gaobot
    Bekkoame
  • threat
    [threat] W32.HLLW.Lioten
    Bekkoame
  • threat
    [threat] W32.HLLW.Moega
    Bekkoame
  • threat
    [threat] W32.HLLW.Nebiwo
    Bekkoame
  • threat
    [threat] W32.HLLW.Polybot
    Bekkoame
  • threat
    [threat] W32.Ifbo
    Bekkoame
  • threat
    [threat] W32.Janx
    Bekkoame
  • threat
    [threat] W32.Kibuv.Worm
    Bekkoame
  • threat
    [threat] W32.Kiman
    Bekkoame
  • threat
    [threat] W32.Korgo
    Bekkoame
  • threat
    [threat] W32.Mytob
    Bekkoame
  • threat
    [threat] W32.Reatle
    Bekkoame
  • threat
    [threat] W32.Sasser
    Bekkoame
  • threat
    [threat] W32.Scane
    Bekkoame
  • threat
    [threat] W32.Slackor
    Bekkoame
  • threat
    [threat] W32.Spybot
    Bekkoame
  • threat
    [threat] W32.Wallz
    Bekkoame
  • threat
    [threat] W32.Welchia
    Bekkoame
  • threat
    [threat] W32.Yaha, Randex
    Bekkoame
  • threat
    [threat] W32.Zotob
    Bekkoame
  • trojan
    [trojan] Nimda. Virus / Worm / Mail trojan / Network trojan / Hacking tool. Works on Windows 95, 98, ME, NT, 2000 and XP, together with MS Internet Information Server (IIS), MS Internet Explorer 5.5 SP1, MS Outlook , MS Outlook Express and MS Word. Aliases: Concept Virus (CV) v.5, W32.Nimda, Minda, W32.Minda, I-Worm.Nimda, Code Rainbow , PE_Nimda.A, CV-5
    Simovits
  • threat
    [threat] Netdepix
    Bekkoame
  • threat
    [threat] Otinet
    Bekkoame
  • threat
    [threat] Rtkit
    Bekkoame
  • threat
    [threat] Secefa
    Bekkoame
Port: 447/TCP
447/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ddm-dfm
    DDM-Distributed File Management
    IANA
  • ddm-dfm
    -
    SANS
Port: 447/UDP
447/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ddm-dfm
    DDM-Distributed File Management
    IANA
  • ddm-dfm
    -
    SANS
Port: 487/TCP
487/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • saft
    saft Simple Asynchronous File Transfer
    IANA
Port: 487/UDP
487/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • saft
    saft Simple Asynchronous File Transfer
    IANA
Port: 510/TCP
510/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • fcp
    FirstClass Protocol
    IANA
  • t0rnkit-sshd
    [trojan] t0rnkit sshd backdoor
    SANS
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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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