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    <p>Thank you !</p>
    <p> I wasted 4 hours looking for a valid combination :(</p>
    <p>Is this not possible with ifportup ?<br>
    </p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 9/20/22 15:37, Jahanzeb Arshad via
      Pdns-users wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:ecfdc96f-1624-b3b9-41d4-1461d1ada14a@nayatel.com">
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      <p><font face="Helvetica, Arial, sans-serif">Hi,</font></p>
      <p>If its a web server I would suggest using url check instead of
        port check like below:</p>
      <p><a class="moz-txt-link-abbreviated"
          href="http://www.domain.com" moz-do-not-send="true">www.domain.com</a>   
        60    IN    LUA    A "ifurlup('<a class="moz-txt-link-freetext"
          href="https://www.domain.com" moz-do-not-send="true">https://www.domain.com</a>',
        {{'192.168.1.10'},{'192.168.2.20'}}, {timeout=5})"<br>
        <br>
      </p>
      <div class="moz-cite-prefix">Regards<br>
        <b>Jahanzeb Arshad</b><br>
        <br>
      </div>
      <div class="moz-cite-prefix">On 20/9/22 17:25, Adrian M via
        Pdns-users wrote:<br>
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      <blockquote type="cite"
cite="mid:CALNsb6s0_0trSQZnc7KKhY2LZjWvqFCo9k+rYbd5iqiK6rcevA@mail.gmail.com">
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        <div dir="ltr">Hi,<br>
          I'm attempting to implement a simple fail-over mechanism
          between two web servers but I'm not able to find the right
          syntax.<br>
          <br>
          www  LUA     A          (";if ifportup(443, {'192.168.0.10'})
          then "<br>
                                             "      return
          '192.168.0.10'              "<br>
                                             "else                      
                        "<br>
                                             "      return '10.0.0.10'  
                        "<br>
                                             "end                      
                         ")<br>
          <div><br>
          </div>
          <div>Any suggestions are welcome !</div>
        </div>
        <br>
        <fieldset class="moz-mime-attachment-header"></fieldset>
        <pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
      </blockquote>
      <br>
      <fieldset class="moz-mime-attachment-header"></fieldset>
      <pre class="moz-quote-pre" wrap="">_______________________________________________
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    </blockquote>
    <pre class="moz-signature" cols="72">-- 
Best regards,
Adrian Minta


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