NetOps teams are increasingly required to drive rapid changes to the network in support of their business’ digital transformation efforts. This report looks at one of the most powerful—and underused—tools NetOps teams have for dealing with this challenge: DNS data. Often overlooked, DNS data contains untapped insights that NetOps teams can leverage to improve security, optimize performance, uncover potential cost savings—and demonstrate value.
It’s nearly unanimous: IDC reports that 95% of IT decision makers have already deployed or plan to deploy SD-WAN in the next two years. Critically, however, DDI backhaul or local router or server-based architecture are slowing network response times, preventing many SD-WAN adopters from realizing the full benefits of cloud based SaaS applications. This results in:
- Downtime when DNS resolution to headquarters isn’t available.
- Poor user experiences with SaaS applications such as Office 365 & Google Cloud.
- Cumbersome, error prone per site branch IT management of policy.
The Domain Name System (DNS) is a system that finds resources for you by name. You ask where a name is, and it returns you an IP address. This is done through a distributed database system whereby requests for names are handed off to various tiers of servers which are delineated by the dot (.) in the name you’re looking for. This is an introduction into how DNS functions on your network.
Protection and mitigation strategies to protect your network against attacks which use Denial-of-service, data manipulation or other attacks using DNS as an attack vector.
Encrypted DNS technologies such as DNS over HTTPS (DoH) and DNS over TLS (DoT) give users new means to protect privacy while using the Internet. Organizations will face new obstacles for monitoring network traffic on their networks as users attempt to use encrypted DNS. What are the security and network monitoring implications?
Roughly 80 percent of all enterprise IT today is virtualized. Virtualization is a key enabler in deploying private clouds that deliver fully automated, closely measured, and agile self-service IT to business users.