Telnet is one of the most frequently used software by the system administrator, program developers and anyone who needs to use the application or data that is located in a particular host computer.
It is a network protocol used on the internet or a local area network to provide text-oriented interactive bidirectional communication facility using a virtual terminal connection.
Telnet client is not installed automatically on all linux distribution with a minimum installation.
This article explain how to install telnet client program and tested on various linux platform.
How to Install Telnet Client on RHEL 6/7, CentOS 6/7, Oracle Linux 6/7
1. Issue the following commands to confirm that telnet is installed or not :
# telnet localhost 80
If telnet client does not installed, it should return something like :
# telnet localhost 80 -bash: telnet: command not found
2. Verify telnet client using which command :
# which telnet /usr/bin/which: no telnet in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
3. Issue the following command to install telnet client :
# yum install telnet -y
4. If telnet client installed, it should return something like :
# telnet localhost 80 Trying ::1... Connected to localhost. Escape character is '^]'.
# which telnet /usr/bin/telnet