Webinar: Everything I need to know (about my network) I learned from DNS data
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When: 02/21/2019
11:00 am EST
Where: Canada
Contact: Sunny Chen

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Everything I need to know (about my network) I learned from DNS data



Canadian Internet Registration Authority (CIRA) has been offering a DNS firewall to municipalities across the country for just over a year now and have built up a critical mass of users from coast-to-coast within this sector. Uptake has been so quick in part because of MISA’s great community and the sharing of ideas and practices around cybersecurity. This policy-enabled recursive DNS service is covering everything from closed networks, public WiFi, police forces and libraries to provide us with rich cybersecurity data science for this important segment in Canada.

  • What can an IT manager learn by tracking the DNS queries at a high level, and why the heck are your users visiting servers in Nigeria anyway?
  • What makes one municipality see large volumes of blocked domains while another has comparatively clean traffic?
  • Do municipalities see similar phishing campaigns?
  • Why doesn’t my firewall block this threat?
  • What are the most common forms of malware we are seeing blocked by the DNS firewall?
  • How do phishing and botnet volumes compare within municipal networks?
  • How do municipalities compare with other public-sector networks and from those in the private sector?
  • How do content filtering policies vary between municipalities and for the different network types that they manage – is there even a place for it in the public sphere and why do we see it applied in, for example, one library versus another.

We will close with some analysis on layered cybersecurity by outlining the City of Hamilton’s approach that they presented alongside us in one of our own webinars, and a brief look at how threats are blocked inconsistently between endpoint, network, perimeter, and cloud layers.



Mark Gaudet, Product Manager, Canadian Internet Registration Authority 


February 21, 2019 at 11am EST