Farsight Security will roll out two new DNS security services at Black Hat USA in Las Vegas next week. Domain Sentry alerts companies of any real-time changes to their domains. Brand Sentry tracks any misuse or suspicious activity around similar-looking DNS domains in order to prevent phishing, typo squatting, and other domain abuse, for example, that could injure a brand. Vixie says DNS protection isnt working at the firewall or intrusion detection system level today. The goal is active defense and prevention of DNS abuse, he says.”]