A port is just a channel that you select for the communication, and the protocol determines how the communication is done. A certain protocol usually uses a specific port, like port 80 for HTTP, port 21 …

/etc/services is only advisory, it's a listing of well-known ports. It doesn't mean that anything is actually running on that port or that the named service will run on that port. In PostgreSQL's case it's typical …

Sep 23, 2011 · 145 Can anyone tell me how to telnet to an address using a specific port? I've tried the following: telnet 10.1.1.55 I suppose a route just hasn't been set up between the two hosts? What I …

Sep 9, 2015 · There is no standard about that, but port 8443 is sometimes known as the https-alt, and it seems the only one being popularly used as alternative HTTPS port. It may have become popular …

Jan 14, 2015 · Serial port is a type of device that uses an UART chip, a Universal Asynchronous Receiver Transmitter. One of the two basic ways to interface a computer in the olden days, parallel …

Bidirectional means the data incoming and outgoing data flows over the same channel (sockets), in classical socket it is the case. For example you want to connect to a server: you create a socket, ...

Mar 23, 2019 · The port may already be in use or the connector may be misconfigured. Action: Verify the connector's configuration, identify and stop any process that's listening on port 8080, or configure …

Dec 21, 2024 · Ensured the port I was using would work with other devices Confirmed the scanner could be detected on another computer (showed up in Device Manager) also running Windows 11 23H2

Apr 29, 2025 · connections, disconnects get a lot of information about every single port & connected device (device IDs, sub-devices, connection state, power etc.) restart ports/devices, remove devices …

Aug 17, 2012 · Is there a way to examine the status of a specific port from the Windows command line? I know I can use netstat to examine all ports but netstat is slow and looking at a specific port …