TechRepublic has a nice post on a program, called Tonido, that I presently use to remotely access files/folders on a computer I have setup. Tonido is especially useful if you are a self-employed IT Pro. I encourage you to visit TechRepublic to learn how to install Tonido.
Below are some key points quoted from the article:
Tonido turns a desktop into your own personal cloud, making it simple to gain access to your files and folders from the cloud via browser or mobile app. There are two versions of Tonido: Personal and FileCloud.
Tonido doesn’t store your data on its servers. In fact, the only thing Tonido’s service does is serve as a redirect to your desktop. With encrypted passwords (make sure to set a very strong one here), you should be good to go in terms of security.