Downgrade OpenSSH on mac osx

openssh downgrade

To downgrade OpenSSH on a Mac, you must uninstall the current version of OpenSSH. You can do this by running the following command in a terminal:

sudo launchctl stop com.openssh.sshd
sudo launchctl unload -w /System/Library/LaunchDaemons/ssh.plist

Next, you will need to download the older version of OpenSSH that you want to install. You can do this by finding the version you want on the OpenSSH website or by using a package manager like Homebrew to search for the version you want.

Once you have downloaded the older version of OpenSSH, you can install it by running the following commands in a terminal. Let’s assume we will install openssh8.6p1.

tar xvzf openssh-8.6p1.tar.gz
cd openssh-8.6p1
sudo make install

Replace <8.6p1> with the version number of the OpenSSH release that you downloaded. This will install the older version of OpenSSH on your Mac.

Once the installation is complete, you can check the version of OpenSSH that is installed by running the following command:

ssh -V

This should print the version of OpenSSH that is installed on your system.

Note that downgrading software can sometimes cause problems, so it’s generally a good idea to back up your system before attempting to downgrade any software.

I hope this helps! Let me know if you have any other questions.