Mar 17, 2008
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 HOWTO Prevent an Open DNS - ZYTRAX
IPs do OpenDNS - DNS Configuração - Paschoal Tecnologia
Jun 28, 2019
OpenDNS is a company and service that extends the Domain Name System (DNS) by adding features such as phishing protection and optional content filtering in addition to DNS lookup in its DNS servers.. The company hosts a cloud computing security product suite, Umbrella, designed to protect enterprise customers from malware, botnets, phishing, and targeted online attacks.
Aug 16, 2019 HOWTO Prevent an Open DNS - ZYTRAX Oct 21, 2015 [SOLVED] Internal DNS and Open DNS - Spiceworks