Hey dear colleagues!
Our customer faced an issue when firewall starts to randomly reboot without any reason. We requested a TSF and in even analyses we found that customer had Split Brain and this two errors:
dnsproxy restarted unexpectedly however no known issue was identified. Please open a case if further assistance is required.
dnsproxy: restarts exhausted, rebooting system
I couldn’t find any information about this issue and still wondering what can cause this issue. DNSproxy is not configured on the device.
PAN-OS v. 10.2.2
I would recommend opening a support case. However for the split-brain, change the priorities on the HA config in the 'Election Settings'.
The moment you have an FQDN address object you are using the DNS Proxy service from a device aspect. With that in mind, I would guess that you actually are using the process itself. Not that this really fixes your issue, you still need to open a case to address root cause.
You could take a look at the actual dnsproxyd.log file to see if it actually logs anything that might point towards the problem as you work through the issue with support.
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