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How to find a process using a specific port?
We can use the lsof command to find the process using a specific port with the -i :port_number option: The first four columns in the above output tell us the process name listening on port 22 and its PID, owner, and the file descriptor. We can pass multiple -i :port to the lsof command to find out the processes listening on various ports:
Can a specific port be used by more than one application?
We all know that a port can only be used by a single application or service at the same time. Sometimes we need to know which process is listening on a specific port. In this tutorial, we’ll see different approaches to finding the process listening on a particular port in Linux.
How to configure RPC dynamic port allocation to work with?
Under the Internet key, add the values Ports (MULTI_SZ), PortsInternetAvailable (REG_SZ), and UseInternetPorts (REG_SZ). For example, the new registry key appears as follows: Restart the server. All applications that use RPC dynamic port allocation use ports 5000 through 6000, inclusive.
How are ports assigned in remote procedure call?
If N, the processes using the default will be assigned ports from the set of intranet-only ports. In this example, ports 5000 through 6000 inclusive have been arbitrarily selected to help illustrate how the new registry key can be configured. It isn’t a recommendation of a minimum number of ports needed for any particular system.
How to tell which process is listening on Port 22?
The ss command is the replacement of the netstat command. Now let’s see how to use the ss command to see which process is listening on port 22: If we check the options, we find that the options we passed to the ss command are the same as we passed to netstat.
How to find which program is using a specific Windows port?
In windows, go to Start / Accessories, then right click on ‘Command Prompt’, in the menu click on ‘Run as Administrator’, just like this: Then run ‘ netstat –anb | findstr :80 ‘ command, or any other port.