Event viewer - Warning - DNS Client Events

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Niubi

Event viewer - Warning - DNS Client Events

Post by Niubi » Fri Jun 21, 2019 12:54 pm

Name resolution for the name noscript-csp.invalid timed out after none of the configured DNS servers responded.
^That's the new error message
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0

barbaz
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Re: Event viewer - Warning - DNS Client Events

Post by barbaz » Fri Jun 21, 2019 1:17 pm

That's expected if you use NoScript 10.x. NoScript creates CSP reports to that intentionally-nonexistant domain to track what scripts have been blocked. NoScript also blocks those CSP reports from being sent, so no actual request should leave your browser. DNS lookups can sometimes be done before webRequest API (what NoScript uses to intercept and block the requests) kicks in, this is what you're seeing in those logs.
*Always* check the changelogs BEFORE updating that important software!
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barbaz
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Joined: Sat Aug 03, 2013 5:45 pm

Re: Event viewer - Warning - DNS Client Events

Post by barbaz » Fri Jun 21, 2019 1:21 pm

If this bothers you, I suppose it wouldn't hurt to point noscript-csp.invalid to 127.0.0.1 in your HOSTS file.
*Always* check the changelogs BEFORE updating that important software!
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Giorgio Maone
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Re: Event viewer - Warning - DNS Client Events

Post by Giorgio Maone » Fri Jun 21, 2019 9:57 pm

Notice also that "timeout" is probably misleading here, since any standard-compliant name resolution software will likely answer immediately with a "name or service not known" response.
See https://en.wikipedia.org/wiki/.invalid
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0

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