Using the telnet command you can test if a port is open.
You can check if a port is open in your network by issuing the telnet command.
telnet [domainname or ip] [port]
where
If the port is open, you will see a blank screen. This will mean that connection is successful.
For example
telnet relay.appriver.com 2525
In Windows Vista and Windows 7 you may need to enable telnet first:
Article ID: 181
Created: February 2, 2022
Last Updated: February 2, 2022
Author: QuikBox Admin [[email protected]]
Online URL: https://support.quikbox.com/article.php?id=181