Did pfBlocker break my config.xml?

  • I have a firewall that died on me today. I was able to log in via SSH and found that the config file was badly damaged. The good config file is 248K with 3227 lines of text. The bad config is 8.5K in size and is only 217 lines of text. The solution was to revert to the previous good config file. While choosing the backup to restore it shows that pfBlocker was the one making the changes. Did pfBlocker destroy the xml? How can I tell what happened?

  • Moderator

    What version of pfSense and pfBlockerNG?
    Were there any errors in the pfSense system.log at that timestamp?

  • Sorry for the delay in replying. I'm not sure the version of pfBlockerNG but pfSense was 2.4.4-p1. It would have been whatever version was installed at the same time as we upgrade everything at the same time. There were no errors in the system log around that time.

  • if you have IPv4/IPv6/DNBL list that downloads off the server without timestamps, every time that cron executes and checks for updates on this list and detects one of the url without timestamps, pfblocker just downloads it and treats it as a new updated list. thus it performs its usual task and update all things that include the firewall rules too, hence the config.xml changes.

    disabling the cron or just prolonging the update frequency may fix this frequent config.xml changes or just remove that list without timetamp on your pfblocker configuration.

  • @remlei

    I just had another unit have the same issue but it wasn't during a pfBlocker update. It was a "Intermediate config write during package install for Cron." At 7:36 in the morning the firewall apparently began updating something and the config file went from 222k to 8k in size. Maybe it isn't pfBlocker after all. Not sure at this point but it's getting worrisome.

  • Moderator

    Do you use the pfSense ACB service?

  • @BBcan177 said in Did pfBlocker break my config.xml?:

    pfSense ACB

    As I get them upgraded to 2.4.4_3, yes. But these are not. This unit is at 2.3.4-p1. I'm hoping to have all the units upgraded by the end of the year and have ACB configured on them.

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