Answer Posted / Ranjeet Choudhary
To check if a specific port is open on your Mac, you can use various tools such as Telnet or nmap. Here's how to use each:
- Using Telnet (note: telnet is not included by default on macOS Catalina and newer; you will need to install it first):
Open Terminal, enter the following command, and replace `<IP_address>` with your target's IP address and `<port>` with the desired port number:
```
telnet <IP_address> <port>
```
- If the connection is successful, it means that the port is open. If you get a connection refused message or timeout error, then the port is most likely closed.
- Using nmap: Run this command to check the status of the port.
```
nmap -p <port> <IP_address>
```
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