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Level 1

11 points

zsh: command not found: telnet

I upgraded my Macbook Air to Catalina and i got the following error zsh: command not found: telnet, when a try to use telnet, how can i solve it?

MacBook-Air ~ % telnet 200.34.221.1 443

Posted on Mar 1, 2020 6:07 PM

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Level 8

49,206 points

Posted on Mar 1, 2020 6:29 PM

Hi,

telnet is no longer available since High Sierra, so if you need telnet, you need to install telnet by yourself since telnet is not secured.

Install Homebrew: type

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

Install telenet: type

brew install telnet

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3 replies

Best reply

Level 8

49,206 points

Hi,

telnet is no longer available since High Sierra, so if you need telnet, you need to install telnet by yourself since telnet is not secured.

Install Homebrew: type

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

Install telenet: type

brew install telnet

Level 10

148,877 points

Alternatively, you can use the nc (or netcat) command in Terminal, as a replacement for telnet.

Level 1

11 points

Awesome, thank you very much for your time and help.

Best Regards

zsh: command not found: telnet