It is possible to protect your identity online using a personal VPN account. With the rising number of cyber crimes, online privacy has become a real concern. Also, the emergence of social networking sites and blogs has made it almost impossible for anyone to stay anonymous on the Web. Online privacy is almost impossible to maintain. Most people do not know that cyber criminals can get access to your credit card details just by sniffing your Internet traffic (like in wireless hotspots).
You can also remotely access your applications via SMS text message. GT-531 is an intelligent Modbus SMS / GSM gateway for M2M applications. With GT-531 you can send and receive SMS messages between phones, a PC and your control system. You can send messages to up to 256 mobile phones. The content of the text messages can be changed through Modbus protocol.
Lastly, Viscosity, my newly acquired Openvpn client. This award winning vpn nasil kurulur client keeps all my internet activities safe from preying thefts and allow me to access websites that are blocked by my ISP. My internet speed is much faster and stable now.
These gadgets let us enjoy the benefits of laptops and tablets in one portable apparatus. Normally, it is just a regular laptop with a keyboard and a mouse track pad but with a screen that could be rotated up to one hundred eighty degrees. Turn the screen around and viola, you have a tablet on hand. You only have to spend once for a device that is twice as useful.
Your basic laptop will not benefit from a flashy new router but can get away with a single band 2.43Ghz N router – it is backwards compatible – I’ll show you a quick way to set it all up in a later article – something like the Cisco E1000 may fill this niche. However if you have a new laptops then looking at one that handles both bands is a better bet (don’t worry the DLink DIR-825 can do all this for you!).
An alternative solution is to install the Linksys BEFSR41 hardware router. It has a firmware PPPOE connector, which eliminates the need of Winpoet from the PC.
You can use an Ethernet based data acquisition modules which support Modbus TCP protocol. ET-7019 has a web server inside for remote access. You can pull it up on a computer via web browser by its IP address. You can create different users for the ET-7019 and passwords through the web interface. You can turn channels on or off with buttons in the web page. You can also see measurement status of current, voltage or thermocouple input. You can easily use ET-7019 with your SCADA software through Modbus TCP protocol.