[Help] Broke my docker after some firewalld/iptable modification
reddit / selfhosted

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zamk-paw · 2023-12-26 13:22

Hello,

Been a hour im trying to fix my docker but i can't find the
solutions.... would need some help

my error, sorry for the text, was hard to get most of the text :( :

[https://prnt.sc/UUxADkCj5zs\_](https://prnt.sc/UUxADkCj5zs_)

failed  to start daemon: Error initializing network controller: error
creating  default "bridge" network: Failed to program NAT chain:
COMMAND\_FAILED:  'python-nftables' failed: internal:0:0-0: Error:
Could not process rule:  No such file or directory


Thanks for your help!

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adamshand · 2023-12-26 19:38

What I'd try is:

- uninstal firewalld (I'm guessing it has a method to persist iptables
rules between reboots)
- [manually remove any remaining iptables
rules](https://www.digitalocean.com/community/tutorials/how-to-list-
and-delete-iptables-firewall-rules)
- reboot

Be aware that Docker doesn't play nicely with all firewalls.  I know
you can make it work with UFW, but when I last did this (a few years
ago) I had to do some tweaks to get everything working nicely.