📢 แจ้งเตือน: tag/dns - สรุปดราม่าล่าสุด

Level UI • 19 hours • in Articles • 9 min read

An MCP server is not a new API. It is a thin layer over the one you already have

Somewhere in the last year, "do we need an MCP server?" joined the list of questions that arrive in a brief before anyone has said what the thing is for. It is usually framed as MCP vs API, as though the Model Context Protocol were a newer kind of AP...

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Alex • 4 days • in Articles • 14 min read

Drill the Safe Open: How IANA's 2020 Root Key Ceremony Ran Four Days Late

In February 2020 the safe holding the internet's root signing key would not open. IANA's published, hand-initialed ceremony scans show the custody behind the cryptography: a repair script written before anyone drilled, and a signing that took four mi...

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Artem Senenko • Oct 14 • in Articles • 8 min read

How to get alerted when someone changes your DNS records

> TL;DR. Most DNS changes do not take your site down. A new MX record or an edited SPF record usually still resolves, so your uptime checks stay green. To catch these changes, list every record a name should have. Then get an alert when the live answ...

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lisarconnect • Oct 7 • in Articles • 3 min read

Diagnosing DNS Filtering Delays Without Resetting the Network

When a filtering change appears to have no effect, waiting is useful only after you know which setting and resolver the client is using. This checklist keeps the diagnosis focused. Adapted with permission from the original Lisar articlehttps://lisar...

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anik_313 • Aug 28 • in Articles • 6 min read

How Does One Server Find Another Server? DNS, Private DNS, and Service Discovery Explained

Hey developers! 👋 Welcome back to our networking and infrastructure deep-dive series. In the previous articlehttps://www.aniksikder.me/articles/networking/internet-free-infrastructure-how-two-servers-talk-without-using-the-internet we learned some...

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anik_313 • Aug 12 • in Articles • 6 min read

DNS Propagation Explained: Why DNS Changes Take Time and What Actually Happens Behind the Scenes

In the previous articlehttps://www.aniksikder.me/articles/networking/dns-record-types-explained, we explored: How DNS works How DNS records power websites, email systems, and cloud infrastructure At this point, a natural question em...

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anik_313 • Aug 10 • in Articles • 7 min read

DNS Records Explained: A, AAAA, CNAME, MX, TXT, NS, and SRV Records in Modern Internet Infrastructur

In the previous articlehttps://www.aniksikder.me/articles/networking/dns-explained-complete-guide, we explored how DNS translates human-friendly domain names into machine-friendly IP addresses and how a request travels through recursive resolvers, ro...

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anik_313 • Aug 8 • in Articles • 8 min read

DNS Explained: The Complete Guide for Founders, Developers, and Modern Businesses

Most people don’t think about DNS until something breaks. A founder launches a new website and suddenly email stops working. A developer migrates infrastructure and traffic starts disappearing. A marketing team changes a domain setting and the web...

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Artem Senenko • Aug 4 • in Articles • 7 min read

Your domain can expire while your uptime monitor stays green

> TL;DR. One HTTP check on your homepage is not enough to know your site works. It cannot tell you when your domain expires, because an expired domain still returns 200 OK from a parking page. Mail dies at the same time, just as quietly, and you keep...

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ApogeeWatcherverified • Jul 16 • in Articles • 10 min read

Network Performance for Web Teams: DNS, TLS, HTTP, CDN, and Cache Rules

A PageSpeed Insights run flags a high Time to First Byte. The ticket lands on the theme backlog. Hosting gets upgraded. A CDN is added. The next lab run still shows a slow first byte on the same priority URL. In our experience the miss is often earli...

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Ganesh Kumar • Jun 2 • in Articles • 3 min read

How to Configure Nginx as an HTTPS Proxy Server?

Hello, I'm Ganesh. I'm building git-lrc, an AI code reviewer that runs on every commit. It is free, unlimited, and source-available on Github. Star Us to help devs discover the project. Do give it a try and share your feedback for improving the produ...

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richarddjarbeng • May 7 • in Articles • 4 min read

Why Are There Only 13 DNS Root Servers For The Whole World? Is that a problem

If you are studying for a networking or cloud certification like AWS Solutions Architect, you will eventually hit a question that stops you in your tracks: > "How many DNS Root Servers are there?" > Answer: 13. At first glance, this sounds terrifyi...

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Alexandre Vazquez • Apr 14 • in Articles • 8 min read

Istio ServiceEntry Explained: External Services, DNS, and Traffic Control

Every production Kubernetes cluster talks to the outside world. Your services call payment APIs, connect to managed databases, push events to SaaS analytics platforms, and reach legacy systems that will never run inside the mesh. By default, Istio...