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Hello Alfred,</div>
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how would the reverse proxy help? Just by ensuring that there is always (as long as the reverse proxy works 😉) a response to the https request?</div>
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Thanks, Alex<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>Von:</b> radiator <radiator-bounces@lists.open.com.au> im Auftrag von Alfred Reibenschuh <alfred.reibenschuh_v-tservices@at.ibm.com><br>
<b>Gesendet:</b> Dienstag, 17. August 2021 11:26<br>
<b>An:</b> radiator@lists.open.com.au <radiator@lists.open.com.au><br>
<b>Betreff:</b> Re: [RADIATOR] AuthBy DUO issue</font>
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<div dir="ltr">hello</div>
<div dir="ltr"> </div>
<div dir="ltr">seams like you are facing the same "uncooperative" upstream system issue i have had in the past.</div>
<div dir="ltr"> </div>
<div dir="ltr">i have had similar problems with radius and other protocols, that radiator</div>
<div dir="ltr">would mark all upstream servers offline and never recovering.</div>
<div dir="ltr"> </div>
<div dir="ltr">i did not follow your complete conversation, but iirc DUO is http-based,</div>
<div dir="ltr">so if your issue is ha-related you could get away with setting <font size="2" face="Default Monospace,Courier New,Courier,monospace">
CheckTimerInterval to 0</font></div>
<div dir="ltr">and putting a reverse-proxy between radiator and DUO like NGINX</div>
<div dir="ltr">(the community edition of nginx would be sufficient)</div>
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<span style="font-family:Arial,Helvetica,sans-serif">Yours sincerely<br>
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Alfred Reibenschuh</span></div>
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<font size="2" face="Default Monospace,Courier New,Courier,monospace">Message: 1</font>
<div><font size="2" face="Default Monospace,Courier New,Courier,monospace">Date: Mon, 16 Aug 2021 16:23:45 +0000<br>
From: <Alexander.Hartmaier@t-systems.com><br>
To: <hvn@open.com.au>, <radiator@lists.open.com.au><br>
Subject: Re: [RADIATOR] AuthBy DUO issue<br>
Message-ID:<br>
<FR2P281MB05961DB02C47793A3557FCE8A5FD9@FR2P281MB0596.DEUP281.PROD.OUTLOOK.COM><br>
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Content-Type: text/plain; charset="windows-1252"<br>
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Hi,<br>
that sounds like a sane solution.<br>
<br>
A simpler might be to mark Duo dead for a configurable number of seconds after which it's marked as alive again without a check. The next authentication would then either work or again trigger marking it as dead.<br>
<br>
Thanks, Alex<br>
<br>
T-SYSTEMS AUSTRIA GESMBH<br>
PU Cyber Security<br>
Network Architecture<br>
Operation Manager Authentication<br>
Rennweg 97-99, A-1030 Vienna<br>
+43 57057 4320 (phone)<br>
+43 676 8642 4320 (mobile)<br>
E-mail: alexander.hartmaier@t-systems.com<br>
Internet: www.t-systems.at<br>
Blog: blog.t-systems.at<br>
Social Media: Facebook, Linkedin, Twitter<br>
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BIG CHANGES START SMALL ? CONSERVE RESOURCES BY NOT PRINTING EVERY E-MAIL.<br>
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________________________________<br>
Von: radiator <radiator-bounces@lists.open.com.au> im Auftrag von Heikki Vatiainen <hvn@open.com.au><br>
Gesendet: Mittwoch, 14. Juli 2021 20:26<br>
An: radiator@lists.open.com.au <radiator@lists.open.com.au><br>
Betreff: Re: [RADIATOR] AuthBy DUO issue<br>
<br>
On 13.7.2021 18.05, Alexander.Hartmaier@t-systems.com wrote:<br>
<br>
> We've encountered another issue today: when CheckTimerInterval is<br>
> configured to 0, to disable the periodic DUO API check which fills our<br>
> log and generated unnecessary traffic and load, the API never recovers<br>
> when marked as dead.<br>
<br>
That seems to be correct, but likely not expected.<br>
<br>
> Do you have a suggestion how to solve this besides configuring<br>
> CheckTimerInterval for something else?<br>
<br>
Currently there is nothing to solve this. A strategy, such as starting<br>
the poll timer when the API is down and letting it poll until it's up,<br>
would be needed.<br>
<br>
If you have a preferred idea, please let us know.<br>
<br>
Thanks,<br>
Heikki<br>
<br>
--<br>
Heikki Vatiainen <hvn@open.com.au><br>
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