[Cialug] iptables rule -> firewalld

David Champion dchamp1337 at gmail.com
Mon Sep 9 21:44:08 UTC 2019


Redhat documentation has a really nice page on firewalld.

-dc


On Mon, Sep 9, 2019 at 4:32 PM L. V. Lammert <lvl at omnitec.net> wrote:

> Need to persist a iptables rule, .. instead of hacking it in rc.local,
> woudl prefer to do it the 'firewalld' way. Any recommendations on
> translating?
>
> In this example, need to redirect all outbound port 25 traffic on a Docker
> host:
>
> iptables -t nat -I PREROUTING -p tcp --dport 25 -j DNAT --to <MX IP>:25
>
> All zones.
>
>         Thanks!
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