(Everyone knows that if you want to remotely access the router and manage it, there are many ways, but the most secure one is SSH, because Telnet, third-party software, etc. are used. These are clear text transmission of users and passwords, which are very easy to be intercepted by people, such as using tools such as Sniffer. Therefore, the SSH method is now used for remote management of the router. However, not everyone will start with how to configure the router, and some details in between, password encryption, etc. And it also cooperates with third-party software (ie SSH) to manage the router more conveniently. There are very specific PPT tutorials here. If you want to learn this, you must watch it.)