Users who access the internet from school dormitories, internet cafes, residential areas usually only get an internal IP address. Similarly, when surfing the web via wireless GPRS, an internal IP is also assigned. In such cases, you can only access external resources; external users are unable to access your device because port forwarding cannot be configured on the proxy server. Previously, this situation was considered unsolvable. Now, we can use the "Apple Tea" no-IP intranet hosting service provided by Meibu Technology (www.wuip.com). By applying for a second-level domain on this website, you can make it possible for external users to access your internal computer. First, visit www.wuip.com and click on "User Registration." Agree to the registration terms, then input your desired domain name in the application page—for example, if you enter "abc," you will receive the domain abc.wuip.com. After completing the application...