TeamViewer Host is a Servers & Network software developed by TeamViewer. After our trial and test, the software is proved to be official, secure and free. Here is the official description for TeamViewer Host:

Edit By BS Editor: TeamViewer Host is running as a system service and is used for 24/7 access to remote computers, including login/Logout and remote reboot - optimized for server maintenance or home-office access
Feature:

* TeamViewer Host is the solution for 24/7 access to unattended remote systems
* BTW: Unlike most competitors TeamViewer includes and unlimited number of free hosts with all licenses - you just pay for the supporter license and your remote servers are included for free!

One solution for everything
While most competitors offer different packages for remote support, Remote Administration, training and sales (and also charge for them...) TeamViewer is the one-stop solution for everything you need: TeamViewer includes all modules in one simple and very affordable package.

Remote administration of unattended servers
TeamViewer can also be used to control unattended computers and servers. Installation as a system service even allows remote reboot and reconnect.

File Transfer
TeamViewer comes with integrated file transfer that allows you to Copy files and Folders from and to a remote partner - which also works behind firewalls

Highest security standard
TeamViewer is a very secure solution. All versions feature completely secure data channels with key exchange and AES (256 Bit) session encoding, the same security standard used by https/SSL.