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<p class="MsoNormal">Hello together,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have dnsdist in Version 1.5.1 installed and are successfully using some rules for blocking/slowing down queries for some subdomains:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">addAction(RegexRule(".*\\.subdomain\\.example\\.org$"), ERCodeAction(DNSRCode.SERVFAIL))<o:p></o:p></p>
<p class="MsoNormal">addAction(RegexRule(".*\\.?example\\.org$"), QPSAction(10))<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But now, I have a little more complicated task: I want to block all queries for *.example.org, except subdomain1.example.org and subdomain2.example.org.<o:p></o:p></p>
<p class="MsoNormal">I tried it with some Online Regex-Tools (<a href="https://regex101.com/r/Y2sXP8/3">https://regex101.com/r/Y2sXP8/3</a>), but these rule is not accepted by dnsdist. I know that the incasesensitive-flag isn’t needed in dnsdist, but this was
for testing. Is there a good documentation about the regex escpecially for dnsdist or is my problem not solvable with dnsdist regex?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for your help and best regards,<o:p></o:p></p>
<p class="MsoNormal">Markus<o:p></o:p></p>
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