Windows Server 2019 and the most recent version of Windows 10 include the ability to install both an SSH client and an SSH server. To get an SSH client onto Windows 10 or Windows Server 2019, without using 3rd party software or installing Windows Subsystem for Linux, use the PowerShell command:
Add-WindowsCapability -Online -Name OpenSSH.Client~~~~0.0.1.0
windows
windows server 2019
ssh
SSH on 10.5 and up is launched by launchd, and reads its port from /etc/services. To change the port, edit /System/Library/LaunchDaemons/ssh.plist and hard code the new port number in place of the service name.
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