To validate if a firewall access to specific port is accessible for remote connections or not can be validated as below.
On remote Linux machine run command "nc -l 14240", this will temporarily starts listening on the said port for a short duration.
If you want to persist then use "nc -L 14240"
Validate from your local Windows machine or another Linux server as described in post https://bypramod.blogspot.com/2024/08/telnet-alternative.html
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