@cjbujold said in PfBlockerNG causing a network reset error.:
Thank you for the feedback. Will definitely try the suggestions. But from your comments I think that Unbound will be the issue since the backups normally runs for about 15+ hours.
If it is Unbound any suggestion on how to fix it?
Thanks
As @Gertjan said, pfBlocker and Unbound are functioning correctly and his detailed description is very good.
Unless the pfBlockerNG list is explicitly blocking your backup, turning off the option to Kill States might solve the problem with your backup breaking.
The downside would be if you have an infected system that is in communication with a malware site, (or any other undesirable activity that has the firewall open) and a new rule comes in to prevent the undesirable communication, that rule will not break the communication until the state times out or something else happens to reload the firewall states. Depending on how often the firewall is rebooted and/or configuration changes are made that could be days, weeks or even months.
You may also wish to look at error.log in the pfBlockerNG log tab or from the shell:
less /var/log/pfblockerng/error.log
I found bad feeds files can also cause issues. You may need to temporarily disable or remove one or more feeds.