why my forward port couldn't work use firewall-cmd

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1. config forward port

firewall-cmd --permanent --add-masquerade
firewall-cmd --permanent --add-forward-port=port=81:proto=tcp:toaddr=127.0.0.1:toport=80
firewall-cmd --reload

now, this is my firwall-cmd. enter image description here

2. open a server use: nc -lk 80 3. use nc -v 127.0.0.1 81 couldn't work, but nc -v 127.0.0.1 80 could work

Asked by Yunbin Liu (101 rep)

Dec 12, 2024, 12:44 AM

why my forward port couldn't work use firewall-cmd

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