If you would like to host a server but the Internet Service Provider(ISP) only gives you a dynamic IP address, then DDNS service provider can help you with that. It matches a domain name you have purchased and a dynamically assigned IP address from your ISP, so that any users can enter the name to connect to your server instead of updating the changing IP address. Before you configure this page, sign up an account from the DDNS service provider's website first.