Telnet

E5624

Telnet is a network protocol and command-line tool that allows users to remotely access and manage devices over a text-based terminal connection.

All labels observed (16)

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf application layer protocol
command-line tool
network protocol
remote access tool
remote terminal protocol
canAccess custom TCP services
mail servers for testing
web servers for testing
commonlyAvailableOn BSD
linked to: Unix

Linux
Unix-like operating systems
Windows
macOS
commonlyReplacedBy SSH
connectionType stateful
defaultPort 23
definedInRFC RFC 854
RFC 855
designedFor remote command execution
remote login
hasClient telnet command-line program
hasDrawback no built-in encryption
susceptible to credential theft
susceptible to eavesdropping
hasSecurityProperty insecure by modern standards
hasServer telnet daemon
introducedInYear 1969
operatesOnLayer application layer
OSIModelLayer layer 7
recommendedUsage only on trusted or isolated networks
runsOver IP
sessionOrientation full-duplex
standardizedBy IETF
supports interactive sessions
text-based terminal connection
supportsAuthentication username and password
supportsOptionNegotiation yes
transmits plaintext passwords
unencrypted data
usedFor debugging network services
network device management
remote server access
router configuration
switch configuration
testing TCP connectivity
usesEncoding ASCII
usesModel client-server model
usesTransportProtocol TCP

How these facts were elicited

Referenced by (38)

Full triples — surface form annotated when it differs from this entity's canonical label.

TCP/IP includesProtocol Telnet
SSH replaced Telnet
PuTTY supportsProtocol Telnet
Cisco IOS supportsProtocol Telnet
RFC 854 title Telnet Protocol Specification
linked to: Telnet
RFC 854 protocolSpecified Telnet
RFC 854 defines Telnet WILL command
linked to: Telnet
RFC 854 defines Telnet WONT command
linked to: Telnet
RFC 854 defines Telnet DONT command
linked to: Telnet
RFC 854 defines Telnet end-of-line conventions
linked to: Telnet
RFC 854 defines Telnet timing and synchronization commands
linked to: Telnet
RFC 854 defines Telnet are-you-there signal
linked to: Telnet
RFC 854 relatedProtocol Telnet
RFC 855 networkProtocol Telnet
RFC 855 standardizes Telnet protocol options
linked to: Telnet
RFC 855 updates Telnet protocol specification
linked to: Telnet
RFC 855 basedOn Telnet protocol
linked to: Telnet
RFC 855 definesConcept WONT Telnet command
linked to: Telnet
RFC 855 definesConcept DONT Telnet command
linked to: Telnet
The Whole Internet User's Guide & Catalog describes Telnet
libwww supportsProtocol Telnet
RFC 857 specifiesProtocol Telnet
RFC 857 relatesTo Telnet option negotiation
linked to: Telnet
RFC 857 relatedTo Telnet protocol
linked to: Telnet
RFC 858 protocol Telnet
RFC 858 relatedTo Telnet protocol
linked to: Telnet
RFC 860 relatesToProtocol Telnet
RFC 860 hasKeyword Telnet
RFC 860 networkProtocol Telnet
Hydra supportsProtocol Rlogin
linked to: Telnet
Ettercap supportsProtocol Rlogin
linked to: Telnet
Windows Features dialog canEnable Telnet Client
linked to: Telnet
RFC 875 protocol Telnet
RFC 875 relatedTo Telnet