<div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-M_M-0bf6M28/YUOdpCkjs4I/AAAAAAAAuwA/voMYX-s0vSkdD7d3_EoPvBC-EF93luWFQCNcBGAsYHQ/s2048/crowdsec_logo.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1383" data-original-width="2048" height="432" src="https://1.bp.blogspot.com/-M_M-0bf6M28/YUOdpCkjs4I/AAAAAAAAuwA/voMYX-s0vSkdD7d3_EoPvBC-EF93luWFQCNcBGAsYHQ/w640-h432/crowdsec_logo.png" width="640" /></a></div><p><br /></p>  <p>CrowdSec is a free, modern &amp; collaborative behavior detection engine, coupled with a global IP reputation network. It stacks on fail2ban's philosophy but is IPV6 compatible and 60x faster (Go vs Python), uses Grok patterns to parse logs and YAML scenario to identify behaviors. CrowdSec is engineered for modern Cloud / <a href="https://www.kitploit.com/search/label/Containers" target="_blank" title="Containers">Containers</a> / VM based infrastructures (by decoupling detection and remediation). Once detected you can remedy threats with various bouncers (firewall block, nginx http 403, Captchas, etc.) while the aggressive IP can be sent to CrowdSec for curation before being shared among all users to further improve everyone's security. See <a href="https://doc.crowdsec.net/docs/faq" rel="nofollow" target="_blank" title="FAQ">FAQ</a> or read bellow for more.</p><span><a name='more'></a></span><div><br /></div><span style="font-size: x-large;"><b>2 mins install</b></span><br />  <p>Installing it through the <a href="https://doc.crowdsec.net/docs/getting_started/install_crowdsec" rel="nofollow" target="_blank" title="Package system">Package system</a> of your OS is the easiest way to proceed.  Otherwise, you can install it from source.</p>  <br /><span style="font-size: large;"><b>From package (Debian)</b></span><br />  <div class="highlight highlight-source-shell position-relative" data-snippet-clipboard-copy-content="curl -s https://packagecloud.io/install/repositories/crowdsec/crowdsec/script.deb.sh | sudo bash  sudo apt-get update  sudo apt-get install crowdsec  "><pre><code>curl -s https://packagecloud.io/install/repositories/crowdsec/crowdsec/script.deb.sh | sudo bash<br />sudo apt-get update<br />sudo apt-get install crowdsec</code></pre></div>  <br /><span style="font-size: large;"><b>From package (rhel/centos/amazon linux)</b></span><br />  <div class="highlight highlight-source-shell position-relative" data-snippet-clipboard-copy-content="curl -s https://packagecloud.io/install/repositories/crowdsec/crowdsec/script.rpm.sh | sudo bash  yum install crowdsec  "><pre><code>curl -s https://packagecloud.io/install/repositories/crowdsec/crowdsec/script.rpm.sh | sudo bash<br />yum install crowdsec</code></pre></div>  <br /><span style="font-size: large;"><b>From package (FreeBSD)</b></span><br />  <div class="snippet-clipboard-content position-relative" data-snippet-clipboard-copy-content="sudo pkg update  sudo pkg install crowdsec  "><pre><code>sudo pkg update<br />sudo pkg install crowdsec<br /></code></pre></div>  <br /><span style="font-size: large;"><b>From source</b></span><br />  <div class="highlight highlight-source-shell position-relative" data-snippet-clipboard-copy-content="wget https://github.com/crowdsecurity/crowdsec/releases/latest/download/crowdsec-release.tgz  tar xzvf crowdsec-release.tgz  cd crowdsec-v* &amp;&amp; sudo ./wizard.sh -i  "><pre><code>wget https://github.com/crowdsecurity/crowdsec/releases/latest/download/crowdsec-release.tgz<br />tar xzvf crowdsec-release.tgz<br />cd crowdsec-v* &amp;&amp; sudo ./wizard.sh -i</code></pre></div>  <br /><span style="font-size: x-large;"><b><div><b>About the CrowdSec project</b></div></b></span>  <p>Crowdsec is an open-source, lightweight software, detecting peers with aggressive behaviors to prevent them from accessing your systems. Its <a href="https://www.kitploit.com/search/label/User%20Friendly" target="_blank" title="user friendly">user friendly</a> design and assistance offers a low technical barrier of entry and nevertheless a high security gain.</p>  <p>Processing is done in 4 steps:</p>  <div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-ZZ7Ome2S0S0/YUOdXUuG1xI/AAAAAAAAuv4/8fHCvJ4R3iI2Z_QXRgorvZLxD3aN-DIGACNcBGAsYHQ/s851/crowdsec_architecture.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="661" data-original-width="851" height="498" src="https://1.bp.blogspot.com/-ZZ7Ome2S0S0/YUOdXUuG1xI/AAAAAAAAuv4/8fHCvJ4R3iI2Z_QXRgorvZLxD3aN-DIGACNcBGAsYHQ/w640-h498/crowdsec_architecture.png" width="640" /></a></div><p align="center"><br /></p>  <p>Once an unwanted behavior is detected, deal with it through a <a href="https://hub.crowdsec.net/browse/#bouncers" rel="nofollow" target="_blank" title="bouncer">bouncer</a>. The aggressive IP, scenario triggered and timestamp are sent for curation, to avoid <a href="https://www.kitploit.com/search/label/Poisoning" target="_blank" title="poisoning">poisoning</a> &amp; false positives. (This can be disabled). If verified, this IP is then redistributed to all CrowdSec users running the same scenario.</p>  <br /><span style="font-size: x-large;"><b>Outnumbering <a href="https://www.kitploit.com/search/label/Hackers" target="_blank" title="hackers">hackers</a> all together</b></span><br />  <p>By sharing the threat they faced, all users are protecting each-others (hence the name Crowd-Security). Crowdsec is designed for modern infrastructures, with its "<em>Detect Here, Remedy There</em>" approach, letting you analyse logs coming from several sources in one place and block threats at various levels (applicative, system, infrastructural) of your stack.</p>  <p>CrowdSec ships by default with scenarios (brute force, port scan, web scan, etc.) adapted for most context, but you can easily extend it by picking more of them from the <strong><a href="https://hub.crowdsec.net" rel="nofollow" target="_blank" title="HUB">HUB</a></strong>. It is also easy to adapt an existing one or create one yourself.</p>  <br /><span style="font-size: x-large;"><b><div><b>What it is not</b></div></b></span>  <p>CrowdSec is not a SIEM, storing your logs (neither locally nor remotely). Your data are analyzed locally and forgotten.</p>  <p>Signals sent to the curation platform are limited to the very strict minimum: IP, Scenario, Timestamp. They are only used to allow the system to spot new rogue IPs, rule out false positives or poisoning attempts.</p>  <br /><span style="font-size: x-large;"><b><div><b>Install it !</b></div></b></span>  <p>Crowdsec is available for various platforms :</p>  <ul>  <li><a href="https://doc.crowdsec.net/docs/getting_started/install_crowdsec" rel="nofollow" target="_blank" title="Use our debian repositories">Use our debian repositories</a> or the <a href="https://packages.debian.org/search?keywords=crowdsec&amp;searchon=names&amp;suite=stable&amp;section=all" rel="nofollow" target="_blank" title="official debian packages">official debian packages</a></li>  <li>An <a href="https://hub.docker.com/r/crowdsecurity/crowdsec" rel="nofollow" target="_blank" title="image">image</a> is available for docker</li>  <li><a href="https://github.com/crowdsecurity/crowdsec/releases" rel="nofollow" target="_blank" title="Prebuilt release packages">Prebuilt release packages</a> are also available (suitable for <code>amd64</code>)</li>  <li>You can as well <a href="https://doc.crowdsec.net/docs/user_guides/building" rel="nofollow" target="_blank" title="build it from source">build it from source</a></li>  </ul>  <p>Or look directly at <a href="https://doc.crowdsec.net/docs/getting_started/install_crowdsec" rel="nofollow" target="_blank" title="installation documentation">installation documentation</a> for other methods and platforms.</p>  <br /><br /><div style="text-align: center;"><b><span style="font-size: x-large;"><a class="kiploit-download" href="https://github.com/crowdsecurity/crowdsec" rel="nofollow" target="_blank" title="Download Crowdsec">Download Crowdsec</a></span></b></div>

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#CrowdSec