Domain Name With Port. Most prominently it translates more readily memorized domain names to the numerical IP addresses needed for locating and. A port in networking is a term used to identify the service to which an incoming packet is to be forwarded.
DomainNamePort note the colon punctuation mark. A port in networking is a term used to identify the service to which an incoming packet is to be forwarded. This differs from a mixed-mode domain that consists of Windows Server 2003 domain controllers Windows 2000 server-based domain controllers or legacy clients where the default dynamic port range is 1025 through 5000.
You can make it work in nginx in the sense that you could make nginx serve your application on port 80.
53 DNS uses port 53 over UDP for name resolution communications. First of all check if all requirements are met. That said a remote party generally needs to specify the port it wants to use by attaching it to the domain name in this format. Choose the domain that you want to point to your VPS.