Upgrade pfsense CE 2.7.0 to 2.7.1
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Does DNS Lookup show success for all configured DNS servers? Including 127.0.0.1?
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@stephenw10 Yes, all look well.
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Hmm, should be fine from any clients using it then. Perhaps the clients are not using Unbound in pfSense? Or perhaps that DNS traffic is being blocked by the firewall rules? Or forced out of gateway so it never reaches the LAN IP?
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@stephenw10 Hi Steve,
I thought about lots of things, secure DNS, etc. The thing is the rest of the bandwidth is intact. I finally disabled and re-enabled the DNS resolver from the gui and it came back for now. I thought about the cache but that seems like it can't be the problem. It won't resolve without the cache functioning. And dig finds the root and the name server. -
Unbound doesn't stop running? If it did then localhost should show no reply in DNS Lookup.
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@stephenw10 Hi Steve, Yes 127.0.0.1 gives good and accurate response. This should not be possible. However, at other times in dealing with DNS I have seen nslookup function on the client computer before the pfSense DNS diagnostic tool. Not this time however.
I am hoping that this just goes away. :)
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Hmm, well I wouldn't expect it to but.....
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@stephenw10 I know better than to expect it to go away, but I can't think about it right now. I have other servers to (t)fry. If and when I figure it out I will post what I find. The hardest part is the disruptions for my users.
Thanks for your help.
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@reberhar So Steve, I have a question.
We use Comcast which frequently has significant latency. During the latency times I note that DNS requests backup, causing latency reports because dpinger requests get lost in the pile. Buffer bloat, of course can be a problem. I have read articles about that mentioning that our desire to maintain network requests in a linear fashion might sometimes be misplaced.
So I use priq on my shaper. Is there someway to make that queue smaller? I do note that at the time of the recent problems there is no signficant latency reflected in the gui on the WAN. The logs do reflect very recent latency however. This doesn´t seem like it can be the problem because localhost is resolving DNS requests from the Diagnostics Lookup when I do the testing. And reqular non DNS traffic does not seem to be affected. Stuff that is already in the state table continues to work.
I am just trying to think outside of the box.
