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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
Accepted

Could "[email protected]" be a valid email address?

No, this would not be a valid email address. The host part of an email address (@example.com), can be an IP address instead of a domain name, but the IP must be enclosed in brackets, for example: ...
mtak's user avatar
  • 16.9k
51 votes
Accepted

Changing domain name - major security issue

Unfortunately no. Once you give up a domain whomever purchases it next has complete control. If this were not the case, you might be restricted from accepting mail on a new domain you purchase if the ...
Peleion's user avatar
  • 819
19 votes

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

All domains are ultimately controlled by the Internet Corporation for Assigned Names and Numbers (ICANN). From Wikipedia: ICANN is an American multistakeholder group and nonprofit organization ...
Keltari's user avatar
  • 73.4k
16 votes
Accepted

How to give a domain name to a local ip?

The clue is in the question: Domain name. For this to resolve, you'll need to have a local server that'll resolve this for you, instead of passing the request on to the internet. Option 1: Set up a ...
Jarmund's user avatar
  • 6,118
14 votes

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

TL;DR The TLD will probably outlive the legibility of your tattoo. While the other answers address the technical aspect I'd like to address the physical aspect. Unless you are being tattooed by a ...
MonkeyZeus's user avatar
  • 9,156
11 votes
Accepted

How to choose a sensible local domain name for a home network?

In 2018, IETF approved RFC 8375 reserving .home.arpa for use in home networks. (Although the specification is from the Homenet WG, it explicitly states that the name is meant to be usable in any home ...
grawity_u1686's user avatar
10 votes

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

It's probably also worth pointing out that perhaps the most infamous example of a tld surviving its country is the .su domain. Only 15 months after it was assigned, the Soviet Union was dissolved ...
Philippe's user avatar
  • 201
9 votes
Accepted

How to specify the DNS server in host command

Just use: host -a google.com my.dns.server.com host [-aCdlnrsTwv] [-c class] [-N ndots] [-R number] [-t type] [-W wait] [-m flag] [-4] [-6] {name} [server]
Aubs's user avatar
  • 153
9 votes

How are names resolved on modern local networks?

In short, it's a very messy mix of different sets of name resolution protocols used by different OSes, products, apps, services, and APIs. IETF ZeroConf defines the mDNS (multicast DNS) protocol and ...
Spiff's user avatar
  • 105k
8 votes

Changing domain name - major security issue

Make sure you understand the difference between "registering" a domain-name, provisioning domain-name service for it, and actually running a mailserver or hosting content in it. It may be that you're ...
david's user avatar
  • 268
6 votes
Accepted

Error in named-checkzone: DNS zone error: has no address records (A or AAAA)

In a bind9 zone file, any fully qualified domain name (FQDN) needs to have the ending . character added to it. Your references around line 11-12ish ; name servers - NS records IN NS dns1.xyz1....
ivanivan's user avatar
  • 2,952
6 votes

OpenWRT redirect incoming WAN traffic based on domain name

This is not the purpose of a router, routers w/NAT operate at Layer 3 and Layer 4 (IP and Port) what you need operates at layer 7 (application: http). TLDR; You need to configure a web proxy to route ...
Jacob Evans's user avatar
5 votes
Accepted

How can I update the domain name of all my bookmarks for a site?

An easy way to do what you're asking is to: Export your favorites to a text-based bookmarks.html file Use a text editor and do a "search and replace" for the domain names Import the modified ...
egray's user avatar
  • 685
5 votes
Accepted

Can Top Level Domain consists of three parts?

TLDR: Your question isn't about domain levels, it's about the Public Suffix List. The "levels" are separated by a dot, so they cannot have dots by themselves. So your example domain name al....
grawity_u1686's user avatar
5 votes

where is my lan hostname stored

There are several methods: Zero-configuration networking protocols using IP multicast (RFC 1112) sends UDP packets to special addresses that many devices on the LAN treat as the message was sent to ...
Esa Jokinen's user avatar
  • 1,679
5 votes
Accepted

Using one domain for multiple servers. Is it possible?

Is it possible to use the same domain name for all servers? Yes, but (arguably) this doesn't appear to be what you are asking about. That is, it is possible to have a single domain (e.g. example.com) ...
Anaksunaman's user avatar
  • 17.4k
5 votes

How are emails related to or linked with the domain?

First of all, don't confuse two different types of domains. The term "domain controller" comes from Active Directory (AD). It's true that each AD domain is also a DNS domain, and each AD ...
grawity_u1686's user avatar
4 votes

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

You might not need an exotic 2-character TLD, and could go for a slightly longer .com or .net: Assuming you are aiming for the lowest resolution QR code (21x21 pixels), you have several options ...
Jason Smith's user avatar
4 votes

How are emails related to or linked with the domain?

It's mail server & DNS settings. Domain name amazon.com belongs to Amazon and Amazon DNS (A setting) points this domain name to an IP (in fact to a pool of IPs because it's a large company with a ...
Dri372's user avatar
  • 203
3 votes

How to assign a domain name to a device on a local network?

You have 3 options: Option 1: Setup a local DNS server Option 2: Set your router to act as a DNS server, if supported Option 3: Edit the "hosts" file on your operating system (%WINDIR%\System32\...
Gecko99's user avatar
  • 31
3 votes

How To Resolve IP Addresses To Domain Names?

dig has the -x addr option: Reverse lookups -- mapping addresses to names -- are simplified by the -x option. addr is an IPv4 address in dotted-decimal notation, or a colon-delimited IPv6 address. ...
jcomeau_ictx's user avatar
3 votes
Accepted

How public DNS works?

Is a public DNS like 8.8.8.8 is a DNS server or just resolver? It's just a resolver like those provided by ISPs. It does not change anything about how your domain is managed: the records are still ...
grawity_u1686's user avatar
3 votes
Accepted

Error in named-checkzone: DNS zone error:( out of zone) has no addresses records (A or AAAA)

If you pass -i local or -i local-sibling, named-checkzone will succeed fully. Look in the man page for the explanation of -i. Basically -i does post-load zone integrity checks, and defaults to -i ...
Patrick Mevzek's user avatar
3 votes
Accepted

How to Google Search - limit results on specific domain extension?

You can use the site: parameter: mysearchquery site:.org This will return all resuts containing mysearchquery which google finds on .org domains. Similarly, you can also do: mysearchquery site:...
1NN's user avatar
  • 7,949
2 votes
Accepted

what do you actually buy when buying domain names

You have to be accredited to become a TLD registrar. TLDs include .com etc. There are a number of complex and expensive processes - this is why it's not so easy to just become a registrar! Source: ...
Kinnectus's user avatar
  • 10.7k
2 votes

How do I disable website suggestions from searchguide.tds.net?

This happens because TDS has configured their DNS servers to never respond that a host is unknown. Instead, they direct all unknown sites to an IP address that redirects to their search guide. ...
Stephen Ostermiller's user avatar
2 votes

Do 2 different domains come from the same origin if their Name Servers are the same?

Short answer: No, you cannot assume that the same name servers means the same origin due to shared hosting companies. Longer answer: It depends on what you mean by origin, but still by and large no. ...
prateek61's user avatar
  • 1,176
2 votes
Accepted

Give a name to timecapsule

Your Apple Time Capsule already has a name, which it advertizes via Bonjour (also known as IETF ZeroConf, mDNS, etc). Install Avahi or mDNSResponder on your Raspberry Pi so it can make use of that.
Spiff's user avatar
  • 105k
2 votes
Accepted

How to resolve the proper IP address of a server?

The server is dlftp_int.danlawinc.com That is an invalid domain name - _ is not an allowed character. That is why the online tools remove this character (and other not allowed characters) when you ...
DavidPostill's user avatar
  • 158k

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