How to Remove Port Forwarding?

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Check that which port forwardings exist in your system with below command.

sudo iptables -t nat --line-numbers -L

The command above should give an output live below

Chain PREROUTING (policy ACCEPT)
num  target     prot opt source               destination         
1    REDIRECT   tcp  --  anywhere             anywhere             tcp dpt:https redir ports 5443
2    REDIRECT   tcp  --  anywhere             anywhere             tcp dpt:http redir ports 5080

...

Delete the rule by line number. For instance to delete the http -> 5080 forwarding, run the command below

iptables -t nat -D PREROUTING 2

parameter 2 is the line number, if you want to delete https -> 5443, you should use 1 instead of 2

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