Resolved Failed to start firewall with "non-zero exit status 4" (firewall-new.sh)

[dariusju]

Server operating system version

Almalinux 9

Plesk version and microupdate number

Latest

I got this error

 

[Peter Debik]

We've not yet seen this issue. Please contact Plesk support on this so an engineer can investigate it on your server.

To sign-in to support please go to https://support.plesk.com

If you experience login issues, please see this KB article:
https://support.plesk.com/hc/en-us/...rt-plesk-com-and-password-reset-does-not-work

If you bought your license from a reseller, your reseller should provide support for you. If the reseller does not provide support, here is an alternative:
https://support.plesk.com/hc/en-us/articles/12388090147095-How-to-get-support-directly-from-Plesk-

 

[dariusju]

Contacted support all my issues registered

 

[dariusju]

It appeared that iptables misbehaves on server. It's not plesk issue.