I just noticed that telnet was removed after i upgrade my Mac to High Sierra (10.13).

In this post, i going to show your guys how to restore telnet on my Mac OS X 10.13.

First, you need to make sure your Mac OS X already installed with homebrew. If not let’s type following command to install it:-

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Reference link : https://brew.sh/

Once you have homebrew install on your Mac OS X, run the following command to install telnet

brew install telnet