The tap interface allows me to join the home network over public wifi, securely, just as if I were downstairs at home in an easy chair. No remote desktop oriented ports need to be opened on my router and forwarded except for the one needed by the OpenVPN tap interface. Once the encrypted bridged connection is established, plain old Microsoft remote desktop works perfectly.

It’s secured with certificates, a user ID that can be changed easily, and dual passwords. I decided to use my pfSense router and set up an OpenVPN server with a tap, or bridged interface. I would love it if TeamViewer added user controlled certificates to the mix so that only PCs known to each other could establish the connection. Google Authenticator or another program is used for this along with your cell phone. Two factor authorization reduces the risk, however.

It has encryption but anyone who finds out your user ID and password can get into your network from anywhere. I wanted to but I don’t like the security.

Teamviewer 11 for mac free download