Domain Name System Dns Filtering And Redirection. Block access to sites on the list. At its core DNS filtering or Domain Name System filtering without the acronym is a technique that is used to restrict or block access to certain websites or domains.
A DNS filtering configuration restricts access to certain types of web browsing content and is capable of blocking most malicious websites that might expose a singular device or broader network to phishing malware phishing attacks and malicious websites. The dashboard context for a group is displayed. Under Manage click Devices Gateways.
In July 2009 Comcast announced it would test DNS redirection under the name Domain Name Helper Service in Arizona Colorado New Mexico Oregon Texas Utah and Washington.
Using a Cisco Umbrella account the integration will transparently reporting at the URL level intercept Domain Name System DNS queries and redirect them to Umbrella. Blocked domain names are not resolved or an. Domain Name System filtering or DNS filtering for short is a means of blocking access to particular websites pages or IP addresses. To learn more about Cisco Umbrella check out the following links.