MobaSSH

MobaSSH is a free SSH server for Windows, compatible with any ssh client (OpenSSH client, Putty, ...).

MobaSSH is easy to install and includes various useful GNU utilities for managing and monitoring a remote computer: grepm bash, top, gawk, rsync, vmstat, vim, etc...

MobaSSH is packaged in a small single executable that registers as a Windows service so that it can be monitored like other normal Windows services.

MobaSSH will help you administrate / monitor / backup your Windows computers as you would do with Linux/Unix ones. Of course, MobaSSH can be used to transfer files securely in a SSH tunel thanks to the scp/sftp protocols.