Port forwarding unsuccessful on ubuntu 18.04

Port forwarding unsuccessful on ubuntu 18.04

 
Hi,
I have tried to open a port on ubuntu 18.04 desktop version.
I have managed to point the internal ip address (192.168.1.xxx) to my pc MAC in the DHCP and add up a profile of port (internal ip mapped to port) that needs to be opened up in PortForwarding page in router.
In ubuntu, I have run the command sudo ufw allow portnumber/tcp and check the ufw status which is active and port is working.
After completing all the above, I got “post is closed” once checking with yougetsignal.com and “times out” with canyouseeme.com.
If there anything I have done wrong? Thanks for the help.

 

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