[CentOS] Firewalld and iptables

[Gordon Messmer]

On 12/14/18 2:57 PM, Jon LaBadie wrote:
> Well, there are about 20 of them and several screen widths
> long.  However they all end with one of two reasons:
>
>    : No chain/target/match by that name.
>    : Bad rule (does a matching rule exist in that chain?).


If you don't include the errors, all we can do is guess.  The name of 
the chain that doesn't exist is probably key to explaining the error.

Docker is one possible reason for such errors:

https://support.plesk.com/hc/en-us/articles/360007029113-Docker-startup-on-firewalld-Warning-COMMAND-FAILED-No-chain-target-match-by-that-name