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The range of port numbers from 1024 to 49151 (2 10 to 2 15 + 2 14 − 1) are the registered ports. They are assigned by IANA for specific service upon application by a requesting entity. [ 2 ] On most systems, registered ports can be used without superuser privileges.
Web Services Dynamic Discovery (WS-Discovery) is a technical specification that defines a multicast discovery protocol to locate services on a local network. It operates over TCP and UDP port 3702 and uses IP multicast address 239.255.255.250 or ff02::c .
In computer networking, a port or port number is a number assigned to uniquely identify a connection endpoint and to direct data to a specific service. At the software level, within an operating system , a port is a logical construct that identifies a specific process or a type of network service .
A web service (WS) is either: . a service offered by an electronic device to another electronic device, communicating with each other via the Internet, or; a server running on a computer device, listening for requests at a particular port over a network, serving web documents (HTML, JSON, XML, images).
The domain name of the server (for virtual hosting), and the TCP port number on which the server is listening. The port number may be omitted if the port is the standard port for the service requested. Mandatory since HTTP/1.1. [17] If the request is generated directly in HTTP/2, it should not be used. [18] Host: en.wikipedia.org:8080. Host: en ...
A service scan of that device will be able to determine that the port is open and that it is a web service. Service scanners can be set to target a single device, but they are more often set to target a large number of devices. For example, a service scanner may be configured to scan a subnet.
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A Service record (SRV record) is a specification of data in the Domain Name System defining the location, i.e., the hostname and port number, of servers for specified services. It is defined in RFC 2782 , and its type code is 33.