Why SSH TCP port 22 is tested as open?
42032 To help customers manage and configure the TP-Link device better, some TP-Link apps are published for mobile devices, such as Tether 2.0 app, Deco app, Tapo app, and tpCamera app, etc.
Note: In order to use the Tether 2.0 app, TP-Link wireless routers should have the firmware which supports SSH.
SSH (Security Shell) uses encryption to secure the connection between a client and a server. The TP-Link app adopts SSH service, so the products that can use the app also support SSH correspondingly. And TCP port 22 as the default port of SSH Service is set to be opened.
However, SSH Services on the TP-Link products are only available for TP-Link apps. Other SSH clients cannot access to TP-Link products or adjust their settings with command lines. So please rest assured that the SSH will never cause any safety issues on your device.
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