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Found 44 · DNS · Reset

DNS
nslookup Command: How to Use It and Read the Output
How to use nslookup on Windows, Linux and macOS: query a specific DNS server, look up MX, TXT, NS and SOA records, read the output and fix common errors.
23.09.2026 · 10 min · 73 views
DNS
DNS Server Not Responding: How to Fix It on Windows and More
DNS server not responding? Find the cause by symptom and fix it: router reboot, flushdns, Winsock reset, public DNS like 1.1.1.1, nslookup tests, macOS and Linux.
23.09.2026 · 11 min · 53 views
DNS
Cloudflare DNS 1.1.1.1: All Addresses, Setup and Why It Fails
Cloudflare DNS 1.1.1.1 explained: the alternate 1.0.0.1 and filtered pairs, DoT hostname and DoH URL, setup on every device, and why 1.1.1.1 gets blocked.
26.08.2026 · 18 min · 459 views
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DNS
AdGuard DNS: Addresses, Setup and What It Actually Blocks
AdGuard DNS addresses for all three modes, setup on a router, Windows, macOS and Android, plus DoH, DoT and DoQ. What a DNS filter blocks and what it never can.
26.08.2026 · 11 min · 726 views
DNS
Quad9 DNS 9.9.9.9: What It Is, Setup and How It Compares
Quad9 (9.9.9.9) is a public DNS resolver that blocks malicious domains. The .9, .10 and .11 address sets explained, router and system setup, DoH and DoT, versus 1.1.1.1.
26.08.2026 · 11 min · 469 views
DNS
Ghost Domain: Why a Removed Delegation Still Resolves
A resolver learns your nameservers from two places, and the second one can refresh itself forever. That is why a nameserver migration can outlive its own TTL.
24.08.2026 · 10 min · 116 views
DNS
Resolvers Return Different IPs: Propagation and Stale Cache
Two resolvers, two answers for one hostname. Four causes, only one fixes itself. Query each authoritative nameserver and tell propagation from a real defect.
23.08.2026 · 11 min · 111 views
DNS
What Is DNS: How It Works and Why You Need It, Explained
What is DNS and how it works: the full path of a lookup, resolver roles, caching and TTL, private DNS over TLS and HTTPS, plus how to check records with dig.
15.08.2026 · 20 min · 120 views
DNS
How to configure DNS: Windows, router, Android and server
How to configure DNS: change the DNS server on Windows 10 and 11, macOS, Android and your router, set domain A, CNAME, MX and NS records, then verify the result.
15.08.2026 · 23 min · 143 views
DNS
How to Change DNS Server: Windows, macOS, Linux, Android
How to change the DNS server on Windows 10 and 11, macOS, Linux, Android, iOS and your router: step-by-step paths, PowerShell and resolvectl commands, verification.
06.08.2026 · 20 min · 340 views