There are so many instances where good old ping is not allowed through the network or blocked by the end device.
In the past, I have used Nmap to test TCP port numbers but in some companies, nmap is not allowed and some people have correctly commented that using nmap for just a TCP port test is overkill.
Last week I stumbled upon TCPING (https://github.com/pouriyajamshidi/tcping) which is a command line utility that will check to see if a TCP port is up and provide response time statistics. Its pretty straightforward; just download, unzip and you’re good to go.
In the following video, I run you through some of the basics.
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