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 "rlogin"

Port: 221/UDP
221/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • fln-spx
    Berkeley rlogind with SPX auth
    IANA
Port: 221/TCP
221/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • fln-spx
    Berkeley rlogind with SPX auth
    IANA
  • trojan
    [trojan] Snape. Works on Windows. Aliases: Backdoor.Snape
    Simovits
Port: 513/TCP
513/TCP - Known port assignments (6 records found)
  • Service
    Details
    Source
  • login
    remote login a la telnet; automatic authentication performed based on priviledged port numbers and distributed data bases which identify "authentication domains"
    IANA
  •  
    rlogin (Official)
    WIKI
  • login
    BSD rlogind(8)
    SANS
  • threat
    [threat] Grlogin
    Bekkoame
  • grlogin
    [trojan] Grlogin
    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: 2105/UDP
2105/UDP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • minipay
    MiniPay
    IANA
  •  
    IBM MiniPay (Unofficial)
    WIKI
  •  
    eklogin Kerberos encrypted remote login (rlogin) (Unofficial)
    WIKI
  •  
    zephyr-hm-srv Project Athena Zephyr Notification Service hm-serv connection (should use port 2102) (Official)
    WIKI
  • eklogin
    Kerberos (v4) encrypted rlogin
    SANS
Port: 2105/TCP
2105/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • minipay
    MiniPay
    IANA
  •  
    IBM MiniPay (Unofficial)
    WIKI
  •  
    eklogin Kerberos encrypted remote login (rlogin) (Unofficial)
    WIKI
  •  
    zephyr-hm-srv Project Athena Zephyr Notification Service hm-serv connection (should use port 2102) (Unofficial)
    WIKI
  • eklogin
    Kerberos (v4) encrypted rlogin
    SANS

About TCP/UDP ports

TCP port 221 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 221 in the same order in which they were sent. Guaranteed communication over TCP port 221 is the main difference between TCP and UDP. UDP port 221 would not have guaranteed communication as TCP.
UDP on port 221 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 221 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.
Your IP address
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