Skip to content
IT Atlas

Protocol

Telnet

Legacy remote terminal

Port 23TCPEncrypted: No

Record

Ports
23
Transport
TCP
Encryption
No
Typical use
Should be disabled; still present on old devices

Security considerations

Credentials in plaintext; replace with SSH

Where this protocol is explained

Topics that use this protocol

Other protocols over TCP

In the knowledge graph

Open the interactive map centred on this entity to see everything it connects to and travel outwards from there.