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List:       unbound-users
Subject:    Unbound Run Python Module by Some Condition
From:       Yisha Wu via Unbound-users <unbound-users () unbound ! net>
Date:       2015-10-06 18:27:51
Message-ID: CAK3rNwepjqU_V6NU3zKRxrVdnboG90AwGCnJHTE1bex2DBerwA () mail ! gmail ! com
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Hi,

I have set up a DNS-based application in unbound's python module. So the
module execution order is python -> iterator. However, I only care a
collection of incoming queries and I saved these sites in redis database.
So I wonder if the following logic is possible in unbound:

If(Domain in Redis Database) {
       Send to Python Module for resolution;
} else {
       Send to Iterator + Cache for resolution;
}

The reason I want to do this is recently we had a unknown dos attack, and
the python module made the cpu usage become about 85%+. And the cpu usage
became normal after I disabled the python module.

Any response is appreciated.

Thank you!
Yisha

[Attachment #3 (text/html)]

<div dir="ltr">Hi,<div><br></div><div>I have set up a DNS-based application in \
unbound&#39;s python module. So the module execution order is python -&gt; iterator. \
However, I only care a collection of incoming queries and I saved these sites in \
redis database. So I wonder if the following logic is possible in \
unbound:</div><div><br></div><div><div style="font-size:12.8px">If(Domain in Redis \
Database) {</div><div style="font-size:12.8px">           Send to Python Module for \
resolution;</div><div style="font-size:12.8px">} else {</div><div \
style="font-size:12.8px">           Send to Iterator + Cache for \
resolution;</div><div style="font-size:12.8px">}</div></div><div \
style="font-size:12.8px"><br></div><div style="font-size:12.8px">The reason I want to \
do this is recently we had a unknown dos attack, and the python module made the cpu \
usage become about 85%+. And the cpu usage became normal after I disabled the python \
module.</div><div style="font-size:12.8px"><br></div><div \
style="font-size:12.8px">Any response is appreciated.  </div><div \
style="font-size:12.8px"><br></div><div style="font-size:12.8px">Thank you!</div><div \
style="font-size:12.8px">Yisha</div></div>



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