Dynamic Domain Name System (Dynamic DNS) is an Internet service that connects routers with varying IP addresses to Internet domain names. To utilize Dynamic DNS, an account must be created with a Dynamic DNS provider such as DynDNS.com, TZO.com, 3322.org, or noip.com.
你有上述几个网站的账号密码吗?
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Rockyw | If it solves your problem, please mark as answer. Thanks !