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210 votes

Why is DNS apparently involved in issuing "dir" on Windows 10?

The second cmd.exe fails to locate and subsequently load the localized strings from the cmd.exe.mui satellite resource library. Here is what it really attempts to say, taken from a 10.0.18362.1 (...
dlatikay's user avatar
  • 1,021
149 votes

Do servers hold one website only?

Basically: the browser includes the domain name in the HTTP request, so the webserver knows which domain was requested and can respond accordingly. HTTP requests Here's how your typical HTTP request ...
Bob's user avatar
  • 61.8k
130 votes

Does using OpenDNS or Google DNS affect anything about security or gaming speed?

DNS has no effect on ping whatsoever. It is nonsense. DNS provides name resolution services and that is it. Nothing more and nothing less. Your internet connection does not go through the DNS server, ...
Mokubai's user avatar
  • 93.1k
120 votes

I can't visit websites that have “.dev” domain

Ok, I figured it out: I used command scutil --dns which returned current resolvers configuration There was entry: resolver #8 domain : dev nameserver[0] : flags : Request A ...
pawel's user avatar
  • 1,721
92 votes

How do web servers know whether you're using direct IP address access?

To answer your question of how it knows, it has to do with what your browser sends the server. You're right that the system always resolves it to an IP address, but the browser sends the URL you ...
iAdjunct's user avatar
  • 1,672
91 votes

Do servers hold one website only?

I have this explanation for non-tech people. Jack, Jill and Joe live at a dormitory, and they don't have cellphones. In the phonebook, they are all listed with the same number. (A-record) You dial ...
Lenne's user avatar
  • 1,212
83 votes

What prevents me from setting up an A name entry for “” to whatever IP address I want?

Nothing is stopping you. However, nobody will take a look either. That’s because the real domain isn’t pointing at your name server (GCP DNS). One could only get these records by directly asking your ...
Daniel B's user avatar
  • 63.5k
82 votes

How do I debug an emoticon-based URL?

In this case, the domain is "🍕💩.ws" ( This is a free link "shortener" that can turn any link into emojis. It's free and available at In this case, the ...
Josef's user avatar
  • 1,345
74 votes

Activation via systemd failed for unit 'dbus-org.freedesktop.resolve1.service': Unit dbus-org.freedesktop.resolve1.service not found

This problem is related to the network-manager and systemd-resolved.service. After reading the the manjaro forums and the arch wiki You have 2 options configure network-manager to not use systemd-...
nelaaro's user avatar
  • 13.7k
70 votes

Why does the registered domain name “” resolve to

However, I'm still not sure how you can register an external domain to a local one. This is confusing as a tracert never even leaves the machine. How is this handled on the low level? ...
grawity_u1686's user avatar
69 votes

I have a domain, static IP address and many devices I'd like to access outside my house. How do I route them?

You can have one public facing server running nginx reverse proxy that redirects traffic based on subdomain to the correct server. nginx configuration on your "main" server: server { server_name ...
Daniel's user avatar
  • 882
67 votes

Why are DNS queries using CloudFlare's server timing out?

Answer The answer in my case is that the telco equipment commonly used in older installations by CenturyLink treats as a "special address" that is not forwarded – it is used as a ...
rburte's user avatar
  • 1,311
66 votes

Can top level domains disappear if countries cease to exist / malfunction?

Yes, top level domains disappear: .zr is the former Internet country code top-level domain (ccTLD) for Zaire. When Zaire was renamed to Democratic Republic of the Congo in 1997, .zr was phased out ...
David Mulder's user avatar
  • 1,351
64 votes

How to query macOS DNS resolver from Terminal?

It seems taking the effort to formulate the question I understood the problem better to perform more precise google searches and found the answer. On macOS querying DNS is achieved by: $ dscacheutil ...
Josh's user avatar
  • 1,306
64 votes

Can a LAN adapter cause a whole home network to crash?

Yes, it's possible for an Ethernet device to sabotage the entire network. At work, a core switch died and started flooding the network with invalid Ethernet frames at ~700 MBits/s. This caused all PCs ...
Daniel B's user avatar
  • 63.5k
63 votes

.dev domains don't resolve

I'd answered this in another comment, but found this answer in another thread helpful: I'm answering here as Google led me here first, and so I can put some ...
baweaver's user avatar
  • 731
56 votes

Nslookup command line with A record IP as sole output

nslookup was never really intended for scripted use. You really want to use dig instead, which with the +short option produces machine-readable output according to the query parameters. dig +short ...
brm's user avatar
  • 571
52 votes

DNS not resolving only for a handful of people - after 10 days and even via Google DNS

Checked the DNSSEC settings between Google and Cloudflare are consistent They are not. The delegation you submitted through Google specified an RSA key (algorithm 5), but the actual zone at ...
grawity_u1686's user avatar
50 votes

How do I set DNS Servers on Raspberry Pi?

I've found that in the latest version of Raspbian (stretch I think?) you now need to edit the last line of /etc/dhcpcd.conf. There should be a line that starts with static domain_name_servers= - there ...
starbeamrainbowlabs's user avatar
49 votes

Ubuntu 17.04 systemd-resolved DNS lookups randomly fail

Ubuntu 17.04 can not resolve DNS servers with DNSSEC support as of 2017-04-18. Disable DNSSEC with this daemon: sudo mkdir -p /etc/systemd/resolved.conf.d printf "[Resolve]\nDNSSEC=no\n" | sudo tee /...
Sajad Bahmani's user avatar
47 votes

How do I change the DNS settings for WSL2?

The process I documented above is correct - this is how you change the DNS settings under WSL2. My mistake was in using the well known public DNS Servers for CloudFlare ( and Google ( &...
Bevan's user avatar
  • 2,693
45 votes

How to prevent URL redirects in Chrome?

I realize this is far from a perfect answer, as this will only work for responses that serve up content, but I decided to post it as there are currently zero useful, actionable answers. As a quick-...
snarf's user avatar
  • 561
44 votes

DDNS: Is a DIY solution possible? Better?

I'm trying to establish a personal mail/calendar server at my home (yes, I've heard that it's difficult, it's a lot of trouble, and so forth, but I'd still like to try). You probably won't have much ...
grawity_u1686's user avatar
42 votes

How does DNS work when it comes to addresses after slash?

When it comes to handling http(s) requests, all that DNS does is convert the domain name to an IP address. The web browser then connects to that IP address and asks for the resource (eg part after ...
davidgo's user avatar
  • 71k
40 votes

What happens to country specific TLD's in a war involving that country?

I'm trying to find out is if I own foreign TLD's and they're hosted on a server that is in my own country, can access to the URL be stopped or restricted by the TLD host country The short answer is ...
Patrick Mevzek's user avatar
39 votes

How does DNS work when it comes to addresses after slash?

To add to the other answers: here's a quick dissection of a URL: https:// - the protocol aka the "language" that the browser will use ...
Vilx-'s user avatar
  • 4,215
38 votes

.com registration details leaked

Every domain is required by ICANN to have a WHOIS entry, which among other things, includes the name, address, email, and phone number information of the domain's registrant, administrative, and ...
I say Reinstate Monica's user avatar
38 votes

How are DNS records updated to all DNS servers on the internet?

They don't. (Simplifying just a little bit) DNS is a hierarchy. DNS servers know either how to find a parent DNS server or how to find a list of the "root" servers. If they find a parent ...
davidgo's user avatar
  • 71k

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