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<p><font face="Helvetica, Arial, sans-serif">Hmmm my mistake. I
assumed that the syntax for addresses for ifportup should be the
same for ifurlup. Checked on my server with version 4.6.3 and
its also giving me error.</font></p>
<p><font face="Helvetica, Arial, sans-serif">So would suggest using
the ifurlup check for failover.</font><br>
</p>
<div class="moz-signature">Regards<br>
<b>Jahanzeb Arshad</b><br>
<br>
</div>
<div class="moz-cite-prefix">On 20/9/22 22:29, Adrian Minta via
Pdns-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:41e23c0d-b303-4210-0043-049d0fe3acce@gmail.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p>Yes, of course http get is a better option for web servers.</p>
<p>Strangely the ifportup line doesn't seems to work on my server.
I get "Host ... not found: 2(SERVFAIL)"</p>
<p>Could this be the caused by my server version, 4.4.1 ?</p>
<br>
<div class="moz-cite-prefix">On 9/20/22 19:33, Jahanzeb Arshad via
Pdns-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:f1bbb12f-6cd8-04ed-01b4-5d4451b1a4e3@nayatel.com">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8">
<p>You can do with ifportup also like this:</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 "ifportup(443,
{{'192.168.1.10'},{'192.168.2.20'}}, {timeout=5})"</p>
<p>I suggested ifurlup because it will actually do http get
request and verify if it responds with 200 OK message. A
better health check for web servers.<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 21:18, Adrian Minta via
Pdns-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:71850d69-7b1d-954b-0485-fb262ceb0097@gmail.com">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8">
<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">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8">
<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>
</div>
<blockquote type="cite"
cite="mid:CALNsb6s0_0trSQZnc7KKhY2LZjWvqFCo9k+rYbd5iqiK6rcevA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html;
charset=UTF-8">
<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>
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Best regards,
Adrian Minta
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