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<span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:11pt; color:black">Random, blocks, certain durations, etc. Its very random and or short lived which is something we don't want to move to the firewall at the moment
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<span style="color:black">-----Original Message----- <br>
<b>From:</b> Jeff Dyke [jeff.dyke@gmail.com]<br>
<b>Received:</b> Tuesday, 01 Nov 2016, 5:46PM<br>
<b>To:</b> nginx@nginx.org [nginx@nginx.org]<br>
<b>Subject:</b> Re: Blocking tens of thousands of IP's<br>
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<div dir="ltr">what is your firewall?, that is the place to block subnets etc, i assume they are not random ips, they are likely from a block owned by someone??</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Nov 1, 2016 at 5:37 PM, CJ Ess <span dir="ltr"><<a href="mailto:zxcvbn4038@gmail.com" target="_blank">zxcvbn4038@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">I don't think managing large lists of IPs is nginx's strength - as far as I can tell all of its ACLs are arrays that have the be iterated through on each request.
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<div>When I do have to manage IP lists in Nginx I try to compress the lists into the most compact CIDR representation so there is less to search. Here is a perl snippet I use to do that (handles ipv4 and ipv6):</div>
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<div>#!/usr/bin/perl</div>
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<div>use NetAddr::IP;<br>
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<div><br>
</div>
<div>my @addresses;<br>
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<div><br>
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<div>foreach my $subnet (split(/\s+/, $list_of_ips)) {<br>
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<div> push(@addresses, NetAddr::IP->new($subnet));<br>
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<div>}</div>
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<div>foreach my $cidr (NetAddr::IP::compact(@<wbr>addresses)) {</div>
<div> if ($cidr->version == 4) {</div>
<div> print $cidr . "\n";</div>
<div> } else {</div>
<div> print $cidr->short() . "/" . $cidr->masklen() . "\n";</div>
<div>}</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">
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<div class="h5">On Tue, Nov 1, 2016 at 11:15 AM, Cox, Eric S <span dir="ltr"><<a href="mailto:eric.cox@kroger.com" target="_blank">eric.cox@kroger.com</a>></span> wrote:<br>
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<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
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<div class="h5">
<div lang="EN-US">
<div class="m_-1613116173903862241m_-5536988672632864200WordSection1">
<p class="MsoNormal">Is anyone aware of a difference performance wise between using
<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">return 403;<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">vs<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">deny all; <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">When mapping against a list of tens of thousands of ip?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks <u></u><u></u></p>
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