Many routers, cameras, printers, and other hardware devices can now be linked to the Internet by themselves, which increases the risk of remote access. How to completely prevent personal privacy from being violated externally and ensure that your device is isolated from the Internet security? The following system home Xiaobian will introduce how to prevent local devices from being accessed remotely? Make sure the router is secure on a normal home network, and the router is the device that is most directly connected to the Internet. If configured correctly, the router is the only device that can be accessed from the Internet. All other devices are connected to your router, and the router may leak these devices, so make sure the router itself is secure. Not only smart routers, but many common routers now also have a “remote management” function that allows users to log in to the router via the Internet and configure their settings. Most people don't use this feature at all, so you should make sure that this feature is disabled. If you enable this feature and the password is weak, it is possible for an attacker to log in to your router remotely. This option can be found on the router's web interface. If you need remote management, you must make sure to change the default password and, if possible, change it periodically. A large number of consumer routers have a serious security hole. UPnP is an insecure protocol that allows devices on the local network to forward ports on the router by creating firewall rules. However, there is a common security issue with UPnP. Routers receive UPnP requests from the Internet, allowing people on the Internet to create firewall rules on your router. Visit the ShieldsUP website and run the UPnP defect test (https://www.grc.com/x/ne.dll?bh0bkyd2) to check if your router has this UPnP security vulnerability. If your router has security risks, you should download the latest version of the firmware from the vendor's website to update it to resolve this issue. If this doesn't work, try disabling UPnP in the router interface or buying a new router without this problem. After updating the firmware or disabling UPnP, remember to re-run the above tests to make sure the router is secure. Make sure that other devices are inaccessible compared to the router, making sure that printers, cameras, and other devices cannot be accessed over the Internet. Assuming that these devices are connected to a router, you can control whether they can be accessed from the router. These devices should be isolated from the Internet and only accessible from the local network. Port forwarding and DMZ functionality in general routers can involve these issues. The solution is also straightforward, set to forward only the ports that really need to be forwarded, and avoid using the DMZ feature. The DMZ function is not available on all routers. If any, the router will receive all inbound traffic including external devices, just as external devices connect directly to the Internet. In other words, the devices in the DMZ also lose the security behind the router. If you really want your device to be accessible from the Internet, such as using a camera to monitor your own situation, you should make sure your device is installed and set up. After forwarding the router ports so that the devices can be accessed from the Internet, it is essential to ensure that they are set up with strong passwords that are not easily guessed and replaced regularly. This is the most basic and effective method. If you want to be more secure, you can set up a VPN. The device is connected to the local network, and we can connect to the local network instead of the device directly by connecting to the VPN. Ensuring the security of a VPN server is easier than protecting the security of several devices with their own built-in web server software. If you only need to remotely connect to the device from one place, you can create firewall rules on the router to ensure they can only be accessed remotely from an IP address. If you want to share devices such as printers online, you can try to set up services like cloud printing instead of directly exposing them. Tip: When the device is directly exposed to the Internet, remember to install the latest firmware with the security patch to ensure the latest version. Locking the wireless network Streaming media sharing is now so advanced that any new device on the wireless network can access, use and configure these new networking devices. However, only the local wireless network is safe. If the wireless network is not secure, anyone can connect and hijack your device. It is not difficult to further browse any files shared on the network. Although this is very commonplace, it is very important to use WPA2 encryption and a fairly strong long password, including numbers, symbols, and letters. We can also try to ensure home network security through many other methods, such as using WEP encryption, enabling MAC address filtering, and hiding wireless networks, but these are based on WPA2 encryption and strong passwords. This article comes from [System Home] www.xp85.com