Michael Patterson : Advanced NetFlow Traffic Analysis
Michael Patterson
Founder and Product manager for Plixer's Scrutinizer NetFlow and sFlow Analyzer as well as Flow Analytics.

June 2016

You are browsing the archive for June 2016.

DNS Firewall

June 4, 2016

I don’t think I’ve ever spoken with a company – at least that I can remember that didn’t have a firewall in place.  Cisco ASA (Fire Power), Palo Alto, Checkpoint and Fortinet seem to be the more popular ones.  Barracuda, SonicWALL and StormShield we hear about as well.  These systems do a relatively good job at protecting our internal jewels.  However, what I find missing in most solutions, is their ability to stop DNS tunneling and other tactics that abuse the DNS protocol.

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