Hello Fellow Redditors. Hoping someone can give me a little eli5. When using https://www.dnscheck.tools/ on quad 9 and Quad9.11 I notice a few oddities compared to google and cloudflare. 2 things that i have noticed are 1 when using DNS check to make sure im using closest DNS servers and check their response time i … Read More “Quad9 .11 Ed25519 red X for certain signatures when using DNScheck dot tools” »

Not sure if this is the right place to ask this. Trying to connect a domain to M365 for email, and I am struggling. M365 keeps saying that the TXT record is missing. What am I doing wrong? https://preview.redd.it/dchcpyfkh2kd1.png?width=1019&format=png&auto=webp&s=bb2c95d6e259ae9fc1759ed16e5f7697488b02da submitted by /u/grnerd [link] [comments] Powered by WPeMatico

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I am trying to document a threat model of DNS. This means I am documenting security vulnerabilities that can affect DNS and the security defenses to prevent them from being a problem. I currently have the following documents in mind to make the threat model: The Hidden Potential of DNS in Security RFC 3833 – … Read More “Best Books / Websites on DNS Security” »

Hi, May this will be a simple question, but I really cant find a solution about that. I have DNS A “site.com.br” with IP 1.2.3.4. I have a CNAME “www.site.com.br” with “www.site.com.br.cdn.vtex.com” value. My problem: the CDN have a dynamic IP and I have trouble everytime the IP changes. Any Idea how can I solve … Read More “DNS A and CDN with different IPs” »

The book Hidden Potential of DNS in Security is a book I stumbled on Amazon while trying to find books on DNS Security ( I read Amazon book reviews to check for quality). Have you read the book? Do you exercise the solutions it recommends in your projects and at work? Please let me know. … Read More “The Hidden Potential of DNS in Security: Worth Reading?” »

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i can’t access my website through my domain on some devices/browsers, it throws a NS_ERROR_UNKNOWN_HOST error. the domain should be set up correctly though. here’s all the important details i can think of: the domain has an AAAA record pointing to my static ipv6 (ds-lite, so no ipv4) i have given it time to propagate, … Read More “My domain can’t be found, sometimes (NS_ERROR_UNKNOWN_HOST)” »

TL;DR I transferred the problematic domains to gandi.net, really happy with the UI and quick transfer. Hello, my current registrar seems to strugge with fixing inconsistencies between my settings in their control panel and the TLD zones. One of my domains can’t be controlled from their panel at all, another has outdated glue records and … Read More “Registrar for use with own nameservers, DNSSEC, .de .eu .net and .com” »

submitted by /u/Novel_Arrival8566 [link] [comments] Powered by WPeMatico