CERN Computer Security Information

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <link rel="stylesheet" href="/style.css" type="text/css" /> <script type="text/javascript" src="/jquery.min.js"></script> <title>CERN Computer Security Information</title> <script type="text/javascript"> $(document).ready(function(){ // Menu highlight var path = location.pathname.split("/"); if ( path ) { $('#main_menu a[href*="' + path[1] + '"][class!="noselect"]').addClass('selected'); // path[3] = /security/<xxxxx>/ $('#sidebar ul.sidemenu li[class!="noselect"]:has(a[href$="' + path.reverse()[0] + '"])').addClass('selected'); } // Add icon to external links $('a[id!=logo-img]').filter(function() { return this.hostname && this.hostname !== location.hostname; }).after(' <img src="/images/external_link.png" alt="external link" title="external link"/>'); }); </script> </head> <body> <div id="wrap"> <div id="top-bg"></div>  <div id="header"> <div id="logo-text"> <a id="logo-img" href="https://home.cern/"><img src="/images/CERNLogo2.png" width="59" height="59" style="margin: 10px" alt="CERN Logo"/></a><div id="logo-text-big"><a href="/home/en/index.shtml" title="">CERN Computer Security</a></div> </div> <div id="header-logo"><a href="/services/en/emergency.shtml"><img width=335 src="/images/emergency.png" alt="Computer Emergencies"/></a></div> </div>  <div id="header-photo"></div>  <div id="nav"> <ul id="main_menu"> <li><a class="noselect" href="/home/fr/index.shtml"><img src="/images/fr.png" alt="FR"/></a></li> <li><a href="/home/en/index.shtml">Home</a></li> <li><a href="/rules/en/index.shtml">Computing Rules</a></li> <li><a href="/recommendations/en/index.shtml">Recommendations</a></li> <li><a href="/training/en/index.shtml">Training</a></li> <li><a href="/services/en/index.shtml">Services</a></li> <li><a class="secured" href="/reports/en/index.shtml">Reports & Presentations</a></li> </ul> </div>   <div id="content-wrap"> <div id="main"> <h2>Regular Network Security Scans at CERN</h2> <p>Regular security scans are conducted since January 2001 to detect and check the security of any devices connected to the CERN internal network using both standard and custom <a href="/services/en/device_scans.shtml">vulnerability scanners</a>. Each scan will access any TCP and UDP port of devices connected to the General Purpose Network (GPN) or the Technical Network (TN). Devices of generic type "PLC" and connected only to the TN are excluded by default.</p> <p>If security holes are found, instructions to fix them will be sent to the person responsible for the system, whose name can be viewed and updated at <a href="http://network.cern.ch">Network Connection Request Form</a>. (This requires that the "Responsible" or "Main User" are correctly registered).</p> </div>    <div id="sidebar"> <ul class="sidemenu"> <li><a href="/home/en/privacy_statement.shtml">Privacy Statement</a></li> </ul> <h3>Computer Security Incident Response</h3> <ul class="sidemenu"> <li><a href="/services/en/emergency.shtml">Emergencies</a> <li><a href="/services/en/sems.shtml">Self-mitigation portal</a></li> </ul> <h3>Consulting, Pentesting & Reviews</h3> <ul class="sidemenu"> <li><a href="/services/en/reviews.shtml">...on request</a> <li><a href="/services/en/whitehats.shtml">CERN WhiteHat Challenge</a> </ul> <h3>Host-Based Intrusion Detection</h3> <ul class="sidemenu"> <li><a href="/services/en/csl.shtml">Central security logging</a></li> <li><a href="/services/en/password_dumps.shtml">Password Dump Notifications</a></li> <li><a href="/services/en/receipts.shtml">Remote Login Notifications</a></li> </ul> <h3>Traffic Control & Monitoring</h3> <ul class="sidemenu"> <li><a href="/services/en/dns.shtml">DNS analysis</a></li> <li><a href="/services/en/ids.shtml">Network-based intrusion detection</a></li> <li><a href="/services/en/firewall.shtml">The CERN outer perimeter firewall</a></li> <li><a href="/services/en/dnim.shtml">Statistical traffic analysis</a></li> <li><a href="/services/en/spam.shtml">SPAM filtering</a></li> </ul> <h3>Vulnerability Scans</h3> <ul class="sidemenu"> <li><a href="/services/en/device_scans.shtml">Device scans</a></li> <li><a href="/services/en/network_scans.shtml">Network scans</a></li> <li><a href="/services/en/passwords.shtml">Password cracking</a></li> <li><a href="/services/en/web_scans.shtml">Web application scans</a></li> </ul> </div>   </div>  <div id="footer-wrap"> <div id="footer-bottom"> © Copyright 2024<strong> <a href="https://cern.ch/security">CERN Computer Security Office</a></strong> <table> <tr> <td id="footer-info-left"> e-mail: <a href="mailto:Computer.Security@cern.ch">Computer.Security@cern.ch</a><br/> Please use the following PGP key to encrypt your messages:<br/> ID: 0x954CE234B4C6ED84<br/> <a href="https://keys.openpgp.org/vks/v1/by-fingerprint/429D60460EBE8006B04CDF02954CE234B4C6ED84">429D 6046 0EBE 8006 B04C DF02 954C E234 B4C6 ED84</a> </td> <td id="footer-info-right"> Phone: +41 22 767 0500<br/> Please listen to the recorded instructions. </td> </tr> </table> </div> </div>  </div>   </body> </html>

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CERN Computer Security Information