What is an AAAA DNS record (Quad-A explained) - Valimail
Learn everything you need to know about AAAA DNS records (Quad-A), how they work within the DNS framework, and best practices for managing them.| Valimail -
San Salvador. Para Fortinet, la Inteligencia Artificial (IA) no sólo es un hype en la industria tecnológica, sino también en la industria de la ciberseguridad, ya que plantea nuevas formas de comunicarse con las máquinas y están ayudando a los proveedores de ciberseguridad a ser muy efectivos. Durante la ponencia Ciberseguridad en la Era de […]| DPL News
Researchers from UC Riverside and Tsinghua University found a new way to revive a decade-old DNS cache poisoning attack. Read our deep dive into how the SAD DNS attack on DNS resolvers works, how we protect against this attack in 1.1.1.1, and what the future holds for DNS cache poisoning attacks.| The Cloudflare Blog
Learn everything you need to know about AAAA DNS records (Quad-A), how they work within the DNS framework, and best practices for managing them.| Valimail -
Autocast turns one round of unicast latency measurements into millisecond-accurate predictions, automatically selecting the optimal anycast locations for fast .nl response times worldwide. Pairing simulated annealing with real resolver telemetry, it delivers lean, cost-aware PoP sets - often around 11–13 sites - that rival painstaking manual tuning without a single trial BGP announcement. Read on to learn more!| RIPE Labs
Italy’s Piracy Shield blocks IPs and domains within minutes, but measurements performed by researchers at the University of Twente and colleagues show broad collateral damage to legitimate services. We share the results of those measurements in the hopes of sparking a community discussion around the Piracy Shield initiative| RIPE Labs
As part of our research into post-quantum cryptography (PQC) for DNSSEC, we test PQC as a drop-in replacement for classical algorithms. We explore a transition where both run simultaneously, analysing how resolvers validate records, edge cases, and the feasibility and impact of such a period.| RIPE Labs
Last week, I described a gloomy situation: all public TLS certificate providers log your requests. By browsing through the subdomains, one can get their respective IP addresses. If one of them points to your home route, they know your general location. I analyzed several solutions and decided to use wildcard certificates, which don’t leak subdomain information, while continuing to use Let’s Encrypt. My solution caters to my Synology NAS, as it’s the one I’m using. Gett| A Java geek
I recently learned about a new way to leak your privacy, and it’s a scary one. Before going further, know that I’m not a network engineer: perhaps if you work in the field, you’ve known it for your whole career, but it’s quite new to me. Let me share my findings and you can judge. Because the original post was quite lengthy, I broke it down into two instalments, the problem and the solution. The problemThe solution| A Java geek
I recently learned about a new way to leak your privacy, and it’s a scary one. Before going further, know that I’m not a network engineer: perhaps if you work in this field, you’ve known it for your whole career, but it’s quite new to me. Let me share my findings, and you can judge for yourself. Since the original post was quite lengthy, I have broken it down into two installments: the problem and the solution. The situation I own my own domain. I’ve created mu| A Java geek
DNS is absolutely one of the core critical services in your home lab environment. It isn’t flashy or the “next new thing” but if DNS isn’t working, nothing else will… The post Why I run multiple DNS servers in my home lab (and you should too) appeared first on Virtualization Howto.| Virtualization Howto
DNS analysis links Vane Viper's AdTech abuse to AdTech Holding and PropellerAds, delivering malware through fake software, APKs, and redirects.| Infoblox Blog
Building understanding of software markets in local government from the Local Digital team: We’ve also identified through roundtable discussions and feedback from partners that managing effective procurements and successfully exiting technology contracts is a challenge, particularly where internal capacity or capability is limited. With local government reorganisation, new unitary authorities will need to consolidate systems, ... Keep reading| Dave Briggs
Greetings dear friends! Advertising on the Internet is one of the mostmost common ways to finance the content we consume daily. But in some cases, ads can cause annoyance, risk, and excessive resource consumption. If you want to prevent ads from invading your Android browsing experience. One option you can consider using is AdGuard DNS. […] The post How to block advertising on Android using DNS appeared first on Linux Windows and android Tutorials.| Linux Windows and android Tutorials
Coolify's dynamic proxy configuration lets you redirect subdomains to external URLs without creating full resources. Using a simple YAML file with Traefik configuration, you can set up SSL-enabled redirects directly through Coolify's interface.| Julien's DevRel corner
In June 2025, the news that ‘Europe is building its own Internet’ or ‘the European Union is taking the Internet out of the control of the USA’ spread through more and less technological portals. I am talking about the newly created DNS4EU for Public project, a DNS resolver dedicated to the citizens of the European … Continue reading "DNS4EU – a bit EU, a bit secure, a bit pointless"| BadCyber
Cascade is NLnet Labs' new standalone DNSSEC signer. Built in Rust, shaped by the real-world demands of TLD operators. People for whom safety, stability and speed aren’t features — they’re the foundation.| The NLnet Labs Blog
Ahead of CAPIF 4, we once again pause to examine the latest in Central Asia’s digital transformation. Against a backdrop of deepening regional cooperation, we chart improvements in routing security and IPv6 adoption, while also probing interconnection patterns as seen in K-root data.| RIPE Labs
DNS encryption is gaining momentum with proposed standards such as DoT, DoH, and DoQ protecting DNS exchanges from external observers. But these standards introduce non-trivial changes to the original specification. Here we look at the Discovery of Designated Resolvers (DDR) - a mechanism that all…| RIPE Labs
Among NirSoft’s collection of lightweight and practical utilities, one update stands out: DNSLookupView v1.17, a tool for Windows 10, 11, and Server 2025 that| System Administration
In a previous| /dev/posts/
You might want to use an open recursive DNS servers if your ISP's DNS| /dev/posts/
Planning an e-commerce migration? Discover a step-by-step guide to move your store to a new platform without losing SEO rankings, sales, or customer trust.| blog.powr.io
Background| blabs
By Jannik Peters We have been developing support for AF_XDP sockets in NSD. They allow handling a higher rate of network packets than through the Linux network stack on supported hardware[1]—For a list of supported drivers (and by extension hardware) and their minimum Linux kernel version| The NLnet Labs Blog
By Jannik Peters We finally implemented a Prometheus metrics endpoint, providing the statistics you know from nsd-control stats/stats_noreset in Prometheus format via HTTP. To enable the Prometheus metrics endpoint, specify the option metrics-enable: yes in the config's server section. You can then point your Prometheus exporter at http:| The NLnet Labs Blog
A phishing attack slipped past even the most advanced email security systems — and it did so by exploiting a trusted feature used by major tech companies like Google. Hackers Continue ReadingThe DKIM Replay Attack – How Phishers Exploited Google Infrastructure The post The DKIM Replay Attack – How Phishers Exploited Google Infrastructure first appeared on Progist Knowlegde Base.| Progist Knowlegde Base
To ensure your emails are authenticated properly and protected against spoofing, follow the steps below to set up SPF and DKIM for your domain using Google Workspace: SPF: If you’re Continue ReadingGoogle Workspace Email Protection: Setting Up SPF and DKIM The post Google Workspace Email Protection: Setting Up SPF and DKIM first appeared on Progist Knowlegde Base.| Progist Knowlegde Base
Publishing a DMARC (Domain-based Message Authentication, Reporting, and Conformance) record with DreamHost is a relatively simple process. Here’s a step-by-step guide: 1.Access Your DreamHost Account: Log in to your DreamHost Continue ReadingA step-by-step guide on “How to Publish a DMARC Record with DreamHost” The post A step-by-step guide on “How to Publish a DMARC Record with DreamHost” first appeared on Progist Knowlegde Base.| Progist Knowlegde Base
Publishing a DMARC (Domain-based Message Authentication, Reporting, and Conformance) record with Easy DNS is a relatively simple process. Here’s a step-by-step guide: Log in to your EasyDNS account through their Continue ReadingA step-by-step guide on “How to Publish a DMARC Record with EasyDNS” The post A step-by-step guide on “How to Publish a DMARC Record with EasyDNS” first appeared on Progist Knowlegde Base.| Progist Knowlegde Base
slot gacor 2024 agen bola Publishing a DMARC (Domain-based Message Authentication, Reporting, and Conformance) record with Network Solutions is a relatively simple process. Here’s a step-by-step guide: 1. Access Continue ReadingA step-by-step guide on “How to Publish a DMARC Record with Network Solutions” The post A step-by-step guide on “How to Publish a DMARC Record with Network Solutions” first appeared on Progist Knowlegde Base.| Progist Knowlegde Base
Here is a detailed guide on how to effectively set up and configure a custom mail domain for Netcore. 1. To add a new domain, click the “Add Domain” button. Continue ReadingHow to Manage a Custom Mail Domain for NETCORE The post How to Manage a Custom Mail Domain for NETCORE first appeared on Progist Knowlegde Base.| Progist Knowlegde Base
This is mostly for my future reference, for when this happens the next time. I hope it saves me 10-15 minutes of pondering.| Dan Langille's Other Diary
Oblivious DoH (ODoH) makes secure DNS over HTTPS (DoH) queries into private queries which prevent the leakage of client IP addresses to resolvers. The new proposed ODoH standard addresses this problem and today we are enabling users to use this protocol with 1.1.1.1| The Cloudflare Blog
A deep dive into the Encrypted Client Hello, a standard that encrypts privacy-sensitive parameters sent by the client, as part of the TLS handshake.| The Cloudflare Blog
The Domain Name System (DNS) is the address book of the Internet. When you visit cloudflare.com or any other site, your browser will ask a DNS resolver for the IP address where the website can be found.| The Cloudflare Blog
Kube dns -> link-local -> tcpdump -> sudo| Jack's home on the web
This post analyses how many nameservers of ccTLDs are anycasted| Personal blog of Anurag Bhatia
Guest Post: Exploring the promise of fast-path DNS delivery through XDP, and the pain points that come with it.| APNIC Blog
The Internet Engineering Task Force (IETF) meets three times a year to work on Internet Standards and related operational practice documents. In July of 2025 the IETF met in Madrid (finally, and only after a number of thwarted mis-starts!) with more than a thousand folk in attendance through the week.…| blabs
A step-by-step guide for enabling multicast DNS in UniFi for AirPlay, HomeKit, Chromecast, and more. Multicast DNS (mDNS) is essential for smart home and media […] The post How to Set Up mDNS in UniFi Network appeared first on Blog of Cody Deluisio.| Blog of Cody Deluisio
DNS resolution is a vital component of any application infrastructure on Kubernetes. When your application code attempts to access another service in the Kubernetes cluster or even a service on the internet, it has to first lookup the IP address corresponding to the hostname of the service, before initiating a connection to the service. This name lookup process is often referred to as service discovery. In Kubernetes, the cluster DNS server, be it kube-dns or CoreDNS, resolves the service’s...| Istio Blog
El fallo global de los servidores DNS de Cloudflare dejó sin conexión a millones de usuarios. Y todo por un detalle que muchos pasan por alto al configurar su red. El lunes 14 de julio de 2025, millones de personas […]| Teléfonos
This is part of my series on DNS in Microsoft Azure. DNS in Microsoft Azure – Azure-provided DNS DNS in Microsoft Azure – Azure Private DNS DNS in Microsoft Azure – Azure Private …| Journey Of The Geek
Summer research continues this week, but it’s time to ask professors about the value of student research. Professor Aaron Leconte and Visiting Professor Taia Wu recount their Scripps-Pitzer lab that modifies DNA polymerase to improve drug delivery systems. Wu, a Scripps student researcher turned professor, now guides students through summer research and shares the benefits of summer research from the lab’s lead professors.| The Student Life
In June 2025 we activated a new AuthDNS node, hosted at Maharlika IX in Makati City, Manilla Metro, Philippines. In this article we look at what impact this had for DNS clients in the country as well as to the AuthDNS system as a whole.| RIPE Labs
Today, we have taken some important changes on our DNS Resolver into production. Having released support for DNS-over-TLS in 2018, we have now added TCP Fast Open and TLSv1.3.| Lightning Wire Labs
What is DKIM? DKIM stands for DomainKeys Identified Mail and is an email autentication method. It helps the receiving mail server to verify whether an email have been sent from an allowed email server or not. The idea of DKIM is that the senders email servers are signing all outgoing messages with asymmetric encryption. The […] The post What is DKIM and how do you enable IT in Microsoft 365? first appeared on TzuSec.com.| TzuSec.com
What is SPF? SPF stands for Sender Policy Framework and is an email autentication method. It helps the receiving mail server to verify whether an email have been sent from an allowed email server or not. Your SPF policy is set up by publishing it in the form of a TXT record in your DNS. […] The post What is SPF and how do you configure it? first appeared on TzuSec.com.| TzuSec.com
The Domain ASN Mapper represents a critical foundational component of the Domain Reputation Measure project funded by RIPE NCC Community Projects. This component enables large-scale analysis of domain infrastructure by resolving DNS records and mapping them to Autonomous System Numbers (ASNs). This…| RIPE Labs
Set up Custom Domain in Office 365 is crucial for every business who like to have a professional email address using a custom domain name to boost their business credibility and showcasing as more legitimate as branded. This article will guide you with step-by-step process of How to Add Custom Domain in Office 365. […] The post How to Add Custom Domain in Office 365 first appeared on SeekaHost™.| SeekaHost™
Discover how the DNS resolver cache works and its importance in internet performance. Learn more to enhance your online experience.| Filestack Blog
Post describing how I've configured pihole to return different results to clients on my tailnet than those on the LAN.| www.bentasker.co.uk
Last month, something interesting happened in the DNS landscape that most security teams probably missed. DNS4EU went live in June 2025, marking Europe’s first serious attempt at building DNS infrastructure that doesn’t route through Silicon Valley. After spending time analyzing the technical implementation and testing the resolvers, here’s what security professionals need to know about this development. If you can’t read text I have aleternative solution for you as audio book What DN...| hugs4bugs
Fred Baker, ISC Board Member from 1994 - 2025| www.isc.org
There has been a major change in the landscape of the internet over the past few years with the progressive introduction of the QUIC transport protocol. Here I’d like to look at where we are up to with the deployment of QUIC on the public Internet. But first, a review of the QUIC protocol.| blabs
One of the things that makes FreeBSD an amazing operating system is its package manager, pkg(8). Many people will keep arguing with me saying that apt or pacman is better, but pkg has some of the best features out there. Don’t even get me started on number of packages. A friend was telling me “but […]| Antranig Vartanian
Review of public European DNS resolvers DNS4EU, DNS0.EU and Quad9: comparison of security, privacy, speed.| Frederik Himpe
Stork 2.2 adds DNS support Since the last stable version of Stork we have begun adding support for monitoring DNS alongside DHCP.| www.isc.org
Voilà je n'ai plus rien chez Gandi. Après le mail, j'ai changé de registrar et mon nom de domaine principal est maintenant géré ailleurs. | Pensées
My main domain is going for renewal in January. I'm having a few projects in mind that will required some new domains. I've been using gandi as a registrar for the last 20+ years. I'm happy about the service I got. Not happy about their email change policy form last year, so looking to change registrar.| Pensées
Using NetworkManager and systemd-resolved together in Debian| Feeding the Cloud
Over the last few months, I upgraded my Debian machines from| Feeding the Cloud
NLnet Labs' authoritative nameserver NSD currently supports two different data structures for its main memory database: red-black tree en radix tree. Both data structures have their strengths and weaknesses, red-black tree implementation is more memory efficient and the radix tree is more performant (faster). Jeroen Koekkoek explores a new data …| NLnet Labs
V tomto blogpostu jsem si pro vás připravil praktické tipy na to, jak lépe chránit své soukromí na mobilním telefonu: od operačního systému, přes prohlížeč až po VPN.| Sesivany's blog
How to prevent Wine updates from breaking the Remarkable app using DNS sinkholing.| Arch Cloud Labs
Explore when to use DNS load balancing and the key conditions for its effectiveness in managing network traffic.| Kalvad
In this article, you'll learn more about my current authoritative DNS setup with deSEC as hosting provider, DNSControl for automating the configuration and Gitea Action as the GitOps automation glue. As a bonus, it shows the integration with Kubernetes Cert-Manager.| Tobias Brunner aka tobru
Keep both domain and wix tab open till process completes. Just add and Connect Domain to Wix. Get the DNS Records or Nameserver from Wix and update in domain.| SeekaHost™
Dans le cadre de la troisième édition de la Journée de l’Acceptation Universelle (UA), ISOC Bénin organise un événement de formation dédié aux développeurs béninois. Cet atelier se tiendra le…| Internet Society Benin
One of the more active areas of activity at the IETF falls under the remit of the DNS Operations Working Group. It’s an operational Working Group rather than a protocol development working group, but nevertheless the DNS is a very rich topic area with much to talk about. There is a view that this level of attention of unwarranted, as the DNS is just another application layered upon a common Internet substrate. However, I think that this perspective is missing the point that the DNS is an in...| blabs
Learn how Protective DNS blocks threats at the domain level—and how zvelo's URL Database powers vendors with real-time domain intelligence.| zvelo
The dig command is an essential DNS troubleshooting tool on Linux and macOS. However, attempting to use it in a Windows Command Prompt or PowerShell will return the errors as follows: ‘dig’ is not recognized as an internal or external command, operable program or batch file. — dig : The term ‘dig’ is not recognized […] The post The Best Windows Dig Equivalent for DNS Queries appeared first on ShellHacks.| ShellHacks
Why Security is dying?| Xer0x's Underground
The Internet’s Domain Name System (DNS) is a remarkably simple system. You send queries into this system via a call to your local host’s name resolution library, and you get back answers. If you peek into the DNS system you’ll see exactly the same simplicity: The DNS resolver that receives your query may not know the answer, so it, in turn, will send queries deeper into the system and collects the answers. This query/response process is the same, applied recursively. Simple.| blabs
I first deployed my Pi-hole back in 2018 and ever since then, I've never looked back! Pi-hole have just dropped a pretty major update and, of course, I wanted to get HTTPS up and running on the Web UI like I had before. Pi-hole v6 I won't focus too much| Scott Helme
The DNS Operations, Analysis, and Research Center (DNS-OARC) brings together DNS service operators, DNS software implementors, and researchers together to share concerns, information and learn together about the operation and evolution of the DNS. They meet between two to three times a year in a workshops format. The most recent workshop was held in Atlanta, in February 2025. Here are my thoughts on some of the material that was presented and discussed at this workshop.| blabs
Již déle než půl roku provozuje CSIRT.CZ svou druhou komerční službu. Zatímco služba penetrační testování je tu již s námi několik let, službu Deny listy jsme uvedli v červnu 2024. Jedním z důvodů, proč jsme se rozhodli tuto službu spustit, byla potřeba nějak omezit dopad incidentů, u kterých není možné dosáhnout rychlého řešení a přitom| Blog zaměstnanců CZ.NIC
The US Executive Order “Strengthening and Promoting Innovation in the Nation’s Cybersecurity”, published on January 17, 2025, calls for a number of measures to strengthen cybersecurity in the US.| www.isc.org
NLnet Labs is pleased to announce version 4.6.0 of NSD. This release integrates and revives zone verification, a feature previously shipped in a separate product called CreDNS, which had its last release (0.2.10) in June 2012.| The NLnet Labs Blog
ISC’s Organizational Health and Operations Financially and organizationally ISC is in good health, with no major concerns.| www.isc.org
Login to Cloudflare, add domain, update nameserver and configure email records. This article covers each steps to set up email records in Cloudflare easily.| SeekaHost India - Web Hosting Provider in India | Domain Name, Website Hostin...
SeekaHost offer dedicated email hosting to create mail account using your own custom domain. With few mail records, you can now connect email service for domain| SeekaHost India - Web Hosting Provider in India | Domain Name, Website Hostin...
Email is crucial for promoting and communicating with customers. Follow our article to easily configure mail records in cPanel with SeekaHost Email Hosting| SeekaHost India - Web Hosting Provider in India | Domain Name, Website Hostin...
Manage different DNS records in the domain is important if you have host, mail server or third party services. This article guide you how to update DNS Records| SeekaHost India - Web Hosting Provider in India | Domain Name, Website Hostin...
Russian threat actors combine domain name vulnerabilities with hidden router proxy techniques to scale their attacks while remaining shielded from detection.| Infoblox Blog
In this series we’ll update you on our accomplishments in 2024 and our future plans. First we will focus on the work on our domain library for DNS| The NLnet Labs Blog
Setup DKIM Record in the domain for SeekaHost Email hosting service through this article with three simple steps including the details of basics about them.| SeekaHost™
At the ICANN 81 meeting in Istanbul on 10 November 2024, I gave a presentation about the DNS Root Server System, in an effort to increase understanding of the Root Server System (RSS) and Root Server Operators (RSOs).| www.isc.org
Naším dlouhodobým cílem je péče o bezpečnost a stabilitu provozu domén .CZ. Jedním ze základních stavebních kamenů pro to je správně nastavený systém DNS, což však není zcela triviální záležitost a rozhodně to nemusí být jednoduché pro běžné uživatele online služeb. Proto existují správci DNS, kteří se o nastavení DNS starají, ale i těm může| Blog zaměstnanců CZ.NIC
This is part of my series on DNS in Microsoft Azure. DNS in Microsoft Azure – Azure-provided DNS DNS in Microsoft Azure – Azure Private DNS DNS in Microsoft Azure – Azure Private …| Journey Of The Geek
Follow us on Twitter (X) @Hackread - Facebook @ /Hackread| Hackread - Latest Cybersecurity, Tech, Crypto & Hacking News
Follow us on Twitter @HackRead| Hackread - Latest Cybersecurity, Tech, Crypto & Hacking News
Sets up a DNS zone for rossabaker.com in Hetzner DNS with NixOS-DNS and OctoDNS.| rossabaker.com
By Wouter Wijngaards, with contributions from Yorgos Thessalonikefs DNS-over-QUIC (DoQ) uses the QUIC transport mechanism to encrypt queries and responses. The DoQ transport for DNS is defined in RFC 9250. With the recent release, Unbound can be configured to support DoQ clients downstream. This feature is not a standard component| The NLnet Labs Blog
How to get around Connection Reset on DV Lottery application: Increase the JPEG compression on your photos until they are 60KB or smaller. Keep the dimensions at the required 600 by 600 pixels. If you still get Connection Reset, don’t despair, you don’t need to enter everything again: * Start a new application * Do … Continue reading Workaround for Diversity Visa Lottery Site Bugs| Eclectic
Last Updated on September 19, 2024 Smart DNS Free Trial – Free Smart DNS Service? Wow what a geeky title, well hopefully this post isn’t too dull but it’s inspired by a few emails we’ve received about the confusion between VPN and Smart DNS services. So here’s a kind of introduction/Smart DNS review in response. If you don’t want to read about Smart DNS and just want to try out one of the best ones, then you’re in luck. Just click the link below and you can enjoy a 14 day free ...| Ninja Proxy Surfing
ACME protocol efficiently validates certificate requester authorization for requested domains and automates certificate installation in PKI infrastructure.| Encryption Consulting
Want an easy way to understand DMARC, SPF, & DKIM? This guide will tell you what these DNS records mean & how to create them for your domain.| WP Mail SMTP
Pi-hole's ability to manage local DNS records is one of its most useful yet least talked about features - especially in a homelab environment - regardless of if you're running just a few simple services in your lab or something more complicated like a Kubernetes cluster full of containerized services.| Tech Addressed
