Thanks for choosing OpenDNS! To get started, you’ll need to set up one or more of your devices to use OpenDNS’s DNS nameservers. For instructions on how to do this, choose your device type from one of the categories below.

DNS servers in Canada IP Address Location AS Number Software / Version Checked Status Reliability Whois; 149.112.122.10 40568 CIRADNS3 2020-07-15 02:32:09 UTC: valid DNSSEC 100 % Whois DNS Amplification - Protecting Unrestricted (Open) DNS Also, note source IPs can be spoofed in TCP packets, and having TCP 53 open may allow for another type of attack called a SYN/ACK flood to be initiated from your DNS server. Aside from these simple options, most DNS servers give you little granularity in configuring protective controls for your DNS server. Other mitigation strategies include: OpenStack Docs: DNS integration Aug 16, 2019

DNS Amplification - Protecting Unrestricted (Open) DNS

The Domain Name System (DNS) protocol is an important part of the web's infrastructure, serving as the Internet's phone book: every time you visit a website, your computer performs a DNS lookup. Complex pages often require multiple DNS lookups before they start loading, so your computer may be performing hundreds of lookups a day. Point Your DNS to Cisco Umbrella You can use either IPV4 or IPv6 DNS address as your primary or secondary DNS server; however, you must use both numbers and not the same IP address twice. If your router requires a third or fourth DNS server setting, please use 208.67.220.222 and 208.67.222.220 or 2620:119:35::35 and 2620:119:53::53 as the third and fourth entry respectively.

Public DNS Server List

May 06, 2015 Umbrella > - OpenDNS Email or Username . Password . Forgot password? | Single sign on OpenDNS Umbrella is now Cisco Umbrella | Cisco Umbrella While our security offers are built on a foundation of DNS, most of you know they are much, much more than that. We believe we provide the most advanced cloud-delivered security solution in the market, and we want a name that reflects that. The name “Cisco Umbrella” encompasses and better captures our broader set of cloud-delivered security