A recent Windows 10 insider release includes an open source Secure Shell (OpenSSH) preview, as Microsoft is working to improve Linux/UNIX connectivity.

https://redmondmag.com/articles/2017/12/14/windows-10-openssh-preview.aspx

Say Farewell to Putty as Microsoft adds an OpenSSH Client to Windows 10

A December Serve The Home article includes a demo on how to install this OpenSSH preview, which is part of a recent Windows 10 “Windows Insider Program” test release. OpenSSH is typically used for establishing secure remote connections to Linux or Unix machines, but Microsoft has been working over the past couple of years on supporting OpenSSH in the Windows client and server operating systems, too.

Microsoft had announced in 2015 that it was accepted as an OpenSSH contributor to the OpenBSD Foundation, which steers the development of the OpenSSH protocol. Microsoft’s aim in doing so is to support two-way remote management from Windows to Linux systems, and vice versa, along with supporting OpenSSH in PowerShell. In May of this year, Microsoft indicated that it was nearing completion for integrating OpenSSH in the Win32 version of Windows. Back then, Microsoft had indicated that it still had some testing work to do that would be completed in the next couple of months.