Telnet Protocol

Detection Information

The following page provides information on the Telnet Protocol.

Protocol Description

Telnet is a text-oriented protocol typically used to connect to remote devices via a command line interface. The protocol is one of the oldest protocols still in use -- it was developed in 1969.

Full Name

Teletype Network

Introduced

Version 2.88

Best Practices

You should not see the Telnet protocol on your network and any activity should be investigated. The secure SSH protocol is a good alternative to Telnet.

Port Statistics

IP Protocol Flow Percent
TCP 23 100%

Port Reference - RFC

  • TCP 23 - Telnet

Category

Infrastructure


Protocol Detection

Do you know how much Telnet traffic flows through your network? Netify's protocol detection engine and reporting provides insights to help manage your network.

What gets measured, gets managed.

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