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Everything You Need to Know About DNS AttacksIt's important to understand DNS, potential attacks against it, and the tools and techniques required to defend DNS infrastructure. This report answers all the questions you were afraid to ask.
Domain Name Service (DNS) is a critical part of any organization's digital infrastructure, but it's also one of the least understood. DNS is designed to be invisible to business professionals, IT stakeholders, and many security professionals, but DNS's threat surface is large and widely targeted.
Attackers are causing a great deal of damage with an array of attacks such as denial of service, DNS cache poisoning, DNS hijackin, DNS tunneling, and DNS dangling. They are using DNS infrastructure to take control of inbound and outbound communications and preventing users from accessing the applications they are looking for. To stop attacks on DNS, security teams need to shore up the organization's security hygiene around DNS infrastructure, implement controls such as DNSSEC, and monitor DNS traffic
Incident Readiness and Building Response Playbook
In this special report, learn the Xs and Os of any good security incident readiness and response playbook.
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1 Comments
User Rank: Ninja
8/14/2019 | 3:31:17 PM
"Distance vector routing is an asynchronous algorithm in which node x sends the copy of its distance vector to all its neighbors. When node x receives the new distance vector from one of its neighboring vector, v, it saves the distance vector of v and uses the Bellman-Ford equation to update its own distance vector. The equation is given below" - Distance Vector Routing Algorithm or DRA for short
TRILL (Transparent Interconnection of Lots of Links), it uses R-Bridges; R=Route Bridges are used to communicate with each other by creating a grid. This grid could be used to connect the internet in a way where each link shares cost information with its surrounding neighbor; however, if there are links that go down, it uses the DRA to route traffic through another route-bridge. In this example, we can use R1, R2, R3 (indicative on the chart) to help route traffic across the globe without traffic being disrupted (self-healng and learning by creating a math matrix based upon specific factors). Dr. Injong Rhee (NC State Univ. professor, now with Samsung) came up wtih BIC-TCP and CUBIC to help address some of the routing problems with tcp windows adjustment size on the fly but that is for another conversation (CUBIC is used in VMware as part of its routing algorithm, but it has to be selected).
So even if we removed a route, connection or link, the system would be able to learn and route traffic by using another path, again the system has the ability to learn based on priority, path, speed, and congestion (the X, Y, Z are criteria and the numbers represent specific patterns and priorities associated with the network (TRILL - Link State Routing Algorithm and IS-IS can both work with IPv6 to address convergence issues because IPv6 addresses HOP/Distance count, MITM attacks, Security (IPSec VPN) and it works with globlal routing protocols like MPLS and BGPv4 but if properly configured, TRILL could feed into IS-IS and IS-IS could feed into BGPv4 or MPLS. The links are represented by one count so the number of hops can be signficantly reduced thus improving performance and reduce routing cost/redundancy.
From a prior conversation, this would be a geat use case where ML can quantify better metrics and calculations identify improvements in the algorithms and routing security issues.
Possible ideas to ponder over.
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