The Domain Name System (DNS) functions as the phonebook of the internet. It serves to translate IP addresses into readable domain names, enabling end users to access web applications and application programming interfaces (APIs) through fast and reliable internet connections. DNS infrastructure was designed as the building block of the internet, not as a security control point, resulting in DNS servers being viewed as an easy target vulnerable to attack. Protecting DNS servers is critical since a threat to an organization鈥檚 servers also has the capacity to impact enterprise operations, profitability and trust with end users.
Threats to DNS Infrastructure
In the evolving landscape of DNS infrastructure, threats pose serious risks to the speed, availability and operation to enterprises鈥 DNS services. Among these threats are DNS floods, which overwhelm servers with a barrage of requests for resources, effectively rendering them unavailable to legitimate queries. The report underscores the increasing concern surrounding DNS denial of service attacks across various industry sectors, a trend that is expected to continue to escalate in the future. With DNS infrastructure handling up to seven trillion DNS requests a day, multistage attacks have become the primary mode of attack for the modern threat actor. Through collaborative efforts, attackers have found increasing success by working together and combining different tools during a single attack.
Resource Exhaustion Attacks

Resource exhaustion presents in both people and technology. Exhaustion in people is often the result of staffing challenges, lean crews managing multiple aspects of the network while simultaneously defending against attacks. If one aspect of the network falls under attack, it takes away from their ability to manage and oversee other areas. On the technological side, resource exhaustion attacks seek to overload one piece of the network鈥攁 DNS server, a hardware tool, a next-generation firewall鈥攖o the point where it can no longer function because it was not designed to handle a heavy amount of traffic. This style of attack can last anywhere from a few minutes to a continuous attack that lasts for days.
Distributed Denial of Service (DDoS), a type of resource exhaustion attack, simulates thousands of computers attempting to access the same resource simultaneously until it can no longer function. The website under attack becomes unavailable due to the sudden onslaught of false traffic that it is unable to manage. DNS is a common target for these DDoS style attacks because the critical services of websites and applications are reliant on the process of domain names translating to IP addresses being uninterrupted. Mitigating this form of malicious traffic presents a challenge, as these servers typically only have access to the IP address of the resolver. Consequently, any attempt to limit traffic based on this address usually results in false positives.
Securing DNS Infrastructure
By implementing a reverse proxy solution that protects on-prem and hybrid DNS infrastructure, organizations can defend existing DNS hardware tools from globally distributed attacks like resource exhaustion and DDoS. Organizations can ensure access to online services and applications remain available by re-routing traffic through an advanced DNS proxy server and filtering out malicious traffic during attacks in real time. An intelligent reverse proxy solution that deploys through an authoritative DNS change made in a domain controller and does not require replacing any existing tools helps organizations identify legitimate traffic from attack traffic. A solution with proactive security policies eliminates time spent on configuring individual settings or having to change them over time. Organizations that use hardware DNS receive the advantage of continued availability and enhanced security of existing investments and solutions that are critical to their network without having to make any major network adjustments. Through real-time monitoring of DNS infrastructure health and performance, organizations can increase the reliability of routing, security and availability of their existing DNS hardware solutions.
With the increase in remote work in the wake of the COVID-19 pandemic, it has become harder to detect and prevent resource exhaustion attacks. DNS resolution for website and application performance is critical, organizations must invest in adequate DNS infrastructure rather than relying on two or three servers to connect with end users. Adoption of a proactive approach that can identify and mitigate vulnerabilities at each stage of the data journey is pivotal to ensuring that DNS infrastructure is secure amid the evolving threat landscape.
Learn more about how to protect your enterprise from resource exhaustion attacks with a bidirectional reverse proxy service.


Accessibility, often considered a compliance requirement, is at the core of this transformation. Yet, true accessibility encompasses more than technical compliance. It demands a cultural shift towards empathy and understanding. It calls for dedicated teams to champion accessibility at every stage of service delivery. It challenges agencies to view every interaction as an opportunity to forge a deeper connection with citizens.
Customers want easy access to services, and this requires a secure, trusted, personal Government-issued digital identity. Having an individualized login allows customers to establish their identity online before completing important tasks, such as making child support payments or searching for unemployment insurance. To be as secure and validated as possible, these logins should be operated by an organization that does not have a motive to leverage private information to sell customer data for profit.
Developing a DEIA strategy involves a multitude of moving pieces like analyzing data, enforcing requirements, measuring effectiveness and ensuring progress. All of these areas culminate in sustainable cultural intelligence for organizations. Starting the conversation around DEIA in the context of CX begins with the on-going theme of communication rooted in trust鈥攅specially employee and customer trust in the Government. During
Agencies should design interfaces with CX at the forefront. Professionals, such as designers, whose job is to understand how users adapt to natural patterns in software, should have a seat at the table to help integrate new features. This way, new technology is as easy to understand as possible, by as many people as possible. Allowing users to get involved in iterative cycles as updates are added will allow agencies to evolve their solutions as they go. By following previous successes, the overall user experience will improve.
Untapped Resources
After collecting data, agencies need to know how to sift through it to find relative action items. To provide better customer service, agencies need to find measurable results from these initiatives. Actionable plans should be formed around the data results. Ultimately, the customer鈥檚 experience must guide agency programs.