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Last active April 25, 2022 05:07
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  1. niksmac revised this gist Sep 23, 2021. No changes.
  2. niksmac created this gist Sep 23, 2021.
    16 changes: 16 additions & 0 deletions iptables.md
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    Set the rules

    ```
    sudo iptables -A INPUT -i eth0 -p tcp --dport 80 -j ACCEPT
    sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3000
    ```

    On Ubuntu:
    `sudo apt-get install iptables-persistent`

    After that, run next commands every time you want save iptables changes permanently:

    ```
    sudo netfilter-persistent save
    sudo netfilter-persistent reload
    ```