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    Unbound Connection Refused Logs

    Scheduled Pinned Locked Moved DHCP and DNS
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    • T
      TheSkelly
      last edited by

      Hi all,

      I have noticed quite a number of the following messages in my logs (always to the same two IPs)

      2021 Mar 12 20:29:56: 10.31.0.1 (daemon/err) [unbound] [49845:0] error: read (in tcp s): Connection refused for 218.248.240.178 port 53
      2021 Mar 12 20:29:56: 10.31.0.1 (daemon/err) [unbound] [49845:0] error: read (in tcp s): Connection refused for 218.248.240.209 port 53
      

      The logs appear in batches of about 100 over a span of 10mins or so, about 5 times a day.
      They only appear on the interface assigned to VLAN31 (10.31.0.0/24).

      Here are my firewall rules on that interface:

      853f9184-2e47-4a8f-a865-beee696dca09-image.png

      I have a NAT redirect for DNS, configured as per the netgate recipe - however I'm not convinced that is the source of the issue as I also have it applied to my other VLAN interfaces with no issues.

      Has anyone else seen this before? What additional information can I provide to help figure out what's going on? There doesn't seem to be any problems with using/accessing the devices on this VLAN - but it would be nice to get to the bottom of this odd repeated error!

      Thanks in advance! :)

      (pfSense v2.5.0-RELEASE. DNS settings are pretty much 'out of the box default')

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