Details
The telnet package contains the telnet client, which allows users to start connections to other systems via the telnet protocol.
Rationale:
The telnet protocol is insecure and unencrypted. The use of an unencrypted transmission medium could allow an authorized user to steal credentials. The ssh package provides an encrypted session and stronger security and is included in most Red Hat Linux distributions.
Solution
Run the following command to remove telnet:
# yum erase telnet
Default Value:
OS Default: Disabled
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.