I'm trying to open port 80 in linux by using gufw.Here's my rules:-A ufw-user-output -d 192.168.0.100/32 -p tcp -m tcp --dport 80 -j ACCEPT-A ufw-user-output -d 192.168.0.100/32 -p udp -m udp --dport 80 -j ACCEPTAnd here's the output when I check the ufw statusStatus: activeTo                         Action      From--                         ------      ----192.168.0.100 80           ALLOW       Anywhere                                 192.168.0.100 80           ALLOW OUT   Anywhere      I already set port forwarding from my tp-link router with this setting (check no. 2): But when I check my open port with Port Checker Tool, it still tells me that port 80 is closed. Can you help me how to solve my problem? thank you.
Open port 80 in Linux does not work
linux;networking;firewall;port forwarding