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 "ssl"

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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: 261/UDP
261/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • nsiiops
    IIOP Name Service over TLS/SSL
    IANA
  • nsiiops
    IIOP Name Service over TLS SSL
    SANS
Port: 443/TCP
443/TCP - Known port assignments (9 records found)
  • Service
    Details
    Source
  •  
    HTTPS (Hypertext Transfer Protocol over SSL/TLS) (Official)
    WIKI
  • https
    HTTP protocol over TLS SSL
    SANS
  • https
    Secure Sockets Layer (SSL, or "HTTPS"). TLS websites, iTunes Store, FaceTime, Game Center, MobileMe (authentication, iDisk, iDisk Sync, and MobileMe Sync), AirPlay, OS X Lion Internet Restore, Profile Manager.
    Apple
  • https
    http protocol over TLS/SSL
    IANA
  • threat
    [threat] W32.Kiman
    Bekkoame
  • trojan
    [trojan] Slapper. Backdoor / Worm / IRC trojan / Proxy / Distributed DoS tool. Works on Unix (Linux - SuSe, Mandrake, RedHat, Slackware, Debian, Gentoo), together with Apache Web server. Aliases: Linux.Slapper.Worm, Apache/mod_ssl Worm, PUD, ELF/Slapper
    Simovits
  • threat
    [threat] Civcat
    Bekkoame
  • threat
    [threat] Tabdim
    Bekkoame
  • threat
    [threat] W32.Kelvir
    Bekkoame
Port: 443/UDP
443/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • https
    http protocol over TLS/SSL
    IANA
Port: 465/TCP
465/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • urd
    URL Rendesvous Directory for SSM
    IANA
  •  
    URL Rendesvous Directory for SSM (Cisco protocol) (Official)
    WIKI
  • smtps
    smtp protocol over TLS SSL (was ssmtp) ssmtp)
    SANS
Port: 465/UDP
465/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • igmpv3lite
    IGMP over UDP for SSM
    IANA
  • smtps
    smtp protocol over TLS SSL (was ssmtp) ssmtp)
    SANS
Port: 563/TCP
563/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • nntps
    nntp protocol over TLS/SSL (was snntp)
    IANA
  •  
    NNTP protocol over TLS/SSL (NNTPS) (Official)
    WIKI
  • nntps
    nntp protocol over TLS SSL (was snntp)
    SANS
  • snews
    -
    SANS
Port: 563/UDP
563/UDP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • nntps
    nntp protocol over TLS/SSL (was snntp)
    IANA
  •  
    NNTP protocol over TLS/SSL (NNTPS) (Official)
    WIKI
  • nntps
    nntp protocol over TLS SSL (was snntp)
    SANS
  • snews
    -
    SANS
Port: 585/TCP
585/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    De-registered
    IANA
  • imap4-ssl
    IMAP4+SSL (use 993 instead)
    Bekkoame
  • imap4-ssl
    IMAP4+SSL
    SANS
Port: 585/UDP
585/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    De-registered
    IANA
  • imap4-ssl
    IMAP4+SSL (use 993 instead)
    Bekkoame
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About TCP/UDP ports

TCP port 261 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 261 in the same order in which they were sent. Guaranteed communication over TCP port 261 is the main difference between TCP and UDP. UDP port 261 would not have guaranteed communication as TCP.
UDP on port 261 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 261 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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