[Resolved]DNS cache seems corrupt

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ZCS/ZD Version: 8.8.15.GA.3829.UBUNTU14.64 -Patch 1

[solved] Re: DNS cache seems corrupt

Postby davidkillingsworth » Sun Sep 08, 2019 12:53 am

I would like to report that this issue has been solved by replacing the Cisco ASA 5505 firewall with a SonicWall TZ-600.

After months of this issue, we have finally ironed out the problems. Over the past weeks, I had to turn off DNS cache so that normal DNS queries would take place to get around the problems.

After replacing the firewall, I turned the DNS cache back on and all queries are successful.

I did suspect that it was an issue with the Cisco, and it was!

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