Showing only posts tagged DNS. Show all posts.

A root-server at the Internet’s core lost touch with its peers. We still don’t know why.

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Enlarge For more than four days, a server at the very core of the Internet’s domain name system was out of sync with its 12 root server peers due to an unexplained glitch that could have caused stability and security problems worldwide. This server, maintained by Internet carrier …

Zero-Trust DNS

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Microsoft is working on a promising-looking protocol to lock down DNS. ZTDNS aims to solve this decades-old problem by integrating the Windows DNS engine with the Windows Filtering Platform—the core component of the Windows Firewall—directly into client devices. Jake Williams, VP of research and development at consultancy …

Attackers find new ways to deliver DDoSes with “alarming” sophistication

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Enlarge (credit: Aurich Lawson / Getty) The protracted arms race between criminals who wage distributed denial-of-service attacks and the defenders who attempt to stop them continues, as the former embraces “alarming” new methods to make their online offensives more powerful and destructive, researchers from content-delivery network Cloudflare reported Wednesday. With …

How to control non-HTTP and non-HTTPS traffic to a DNS domain with AWS Network Firewall and AWS Lambda

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Security and network administrators can control outbound access from a virtual private cloud (VPC) to specific destinations by using a service like AWS Network Firewall. You can use stateful rule groups to control outbound access to domains for HTTP and HTTPS by default in Network Firewall. In this post …

Report: Recent 10x Increase in Cyberattacks on Ukraine

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As their cities suffered more intense bombardment by Russian military forces this week, Ukrainian Internet users came under renewed cyberattacks, with one Internet company providing service there saying they blocked ten times the normal number of phishing and malware attacks targeting Ukrainians. John Todd is general manager of Quad9 …

Indictment, Lawsuits Revive Trump-Alfa Bank Story

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In October 2016, media outlets reported that data collected by some of the world’s most renowned cybersecurity experts had identified frequent and unexplained communications between an email server used by the Trump Organization and Alfa Bank, one of Russia’s largest financial institutions. Those publications set off speculation …