tunsock BLOG
Securely Access a Private Web Server Using a Proxy Server + P2P Tunnel
You likely use a VPN or similar setup to access a private web server located either at your office or at home from an external PC. In particular, when accessing a private web server within a corporate environment, you have likely established a VPN setup using dedicated server hardware and software. However, a significant security challenge has emerged: standard VPN environments are susceptible to attacks that exploit their inherent vulnerabilities. To address this, I would like to propose an alternative approach for securely accessing a private web server from an external location: a setup that combines a proxy server with a P2P tunnel. Read more
How to View Your PC's Camera Image from Your Android Smartphone Outside the House
Have you ever wanted to view your PC's camera image using your smartphone from anywhere, such as when commuting to work or traveling? In that case, one option is to log in to the PC via Remote Desktop to check. However, that approach comes with issues such as needing to change your home router settings, the inability to easily view the camera feed, and security concerns. Therefore, I would like to introduce an easy and safe way to do it using P2P. Read more
How to Monitor the Status of an Object Using Android's Rotation Angle
Have you ever wanted to monitor whether an object in your home have moved for security or surveillance purposes? In that case, you could use a system that uses camera footage to detect objects and determine if they have moved. However, building such an environment at home is a large-scale undertaking and presents technical hurdles, making it generally difficult. Therefore, I would like to introduce "SP Sensor", which allows you to easily monitor the state of objects using the "rotation angle" of your smartphone. Read more
Easily Create Dynamic Pet Images for Your Blog Content!
What do you do when you want to monitor your pet from outside at night? Expensive surveillance cameras can take infrared pictures at night, but if you don't have one, you have no choice but to leave the home's lights on. With the "SP Camera", you can easily solve this problem! Read more
You Can Monitor Your Pet at Night by Turning on the Light on Your SP!
What do you do when you want to monitor your pet from outside at night? Expensive surveillance cameras can take infrared pictures at night, but if you don't have one, you have no choice but to leave the home's lights on. With the "SP Camera", you can easily solve this problem! Read more
What is P2P Technology that Easily Builds a Secure and Private Data Communication Environment [Performance]
Have you ever wanted to be able to access your home from anywhere using your smartphone or computer? "Tuunel App" is a free service that allows you to safely and easily build such an environment. In this article, I would like to introduce the mechanism and technology that makes such "Tuunel App" possible. Read more


