Questions tagged [tld]

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-1 votes
1 answer
48 views

What happens if the Root name server gets down? [closed]

What happens if the Root name server of a TLD gets down? Does it lead to the malfunction of domains with that domain extension?
0 votes
1 answer
99 views

Postfix : Only receive emails from specific tlds?

I've been searching everywhere and can only find how to block specific tlds. I've set up a rejected_domains file that blocks tlds which I have to manually add as they appear in my inbox. Basically, ...
5 votes
2 answers
12k views

Root nameserver vs. top-level domain server

What's the difference between a root nameserver and a TLD (top level domain) server?
0 votes
3 answers
15k views

Valid List of Email TLDs

I have some users entering some email addresses into my system. I want to ensure that their email address is coming from a valid TLD. Based on the list found at [http://en.wikipedia.org/wiki/...
2 votes
6 answers
31k views

Hosting your own domain name without third party involvement

Maybe this comes from my lack of understanding of how DNS fully works, but i want to host a domain on my own set of DNS servers. That being said, i cannot seem to find a clear way to do this. From ...
22 votes
2 answers
5k views

List of top-level domains (TLDs) that require HTTPS connections, like .dev

I know the .dev top-level domain requires all sites to support only encrypted HTTPS connections, disallowing any HTTP connections. Are there other such TLDs?
0 votes
0 answers
68 views

DNSSEC in Spain

I tried to set up DNSSEC for a .es domain. The nameservers are on Cloudflare and GoDaddy is the registrar. I wasn't able and then a 'GoDaddy Guide' (chat support) told me that DNSSEC would generally ...
0 votes
2 answers
293 views

Why my Windows DNS Server automatically add more TLD (.co.id) when i try to find domain using nslookup?

When i search a domain like google.com, nslookup automatically add more TLD (.co.id) to domain that i've looking for. How to fix it? Screenshoot nslookup on my windows dns server
3 votes
2 answers
577 views

DNS lookup performance penalty with exotic TLDs?

When tuning a web site/service for performance, is there a downside to using a less common top-level domain (e.g. 'nu', 'tv', 'io') for your hostnames? My concern is that if you're using a TLD ...
9 votes
4 answers
22k views

Is it possible to change the postfix message-id?

Is it possible to change the message-id in postfix? If I send Mails over an Java-Application I get the following message-id: message-id=<143303043.111334605578921.JavaMail.applicationanme@hostname&...
109 votes
3 answers
78k views

Can I create a top level TLD? (.michael for instance)

It appears that ICANN is allowing the creation of top level domains. Instead of 'registering' a domain, you would essentially be signing up to be a registrar (you'd be giving out registrations on ...
0 votes
1 answer
460 views

How Top Level Domain DNS server is aware of the IP address of the domain’s nameserver

I try to understand DNS recursion. Assumed I have deployed a local DNS on my machine using bind. I defined the zone file a A record for server1.example.com. I also defined as NS record in the zone ...
12 votes
5 answers
24k views

Verify that a name server is registered at a TLD registry

Let's say I own the domain name example.com. It is registered at registrar R. In my account at R, I registered the following name servers for the .TLD registry: ns1.example.com --> 192.0.2.1 ns2....
4 votes
1 answer
3k views

Do I need an SSL certificate for a .DEV TLD on an MX record?

Do I need an SSL certificate for mail exchange (MX) for a .DEV TLD? Couldn't find this online so I'm asking here. I know that it enforces HTTPS and HSTS.
9 votes
1 answer
15k views

Is TLD .local not a local TLD anymore? [duplicate]

I used to use .local as TLD for small household networks however I got a popup that I wasn't allowed to use it anymore after a firmware upgrade of an Asus Router. I choose now for .lan as internal TLD....
-2 votes
1 answer
896 views

Intermittent DNS failures [closed]

We have intermittent DNS failures. Upon troubleshooting we found from our server, (where the domain is pointed to) gives connection timeout when queried against few TLD ns. Ex: dig domain @tldns (...
0 votes
2 answers
918 views

What TLDs can be used with Azure?

I am a newbie in the Azure world but am planning to use the App service to upload a PHP demo app. However, I was reading in the documentation that I can buy certain supported domains inside Azure but,...
8 votes
4 answers
24k views

How many domain levels are there? [closed]

.com,.us are TLD,top level domain, and co.uk are SLD,second level domain. Are there "third level domain, fourth level domain" and so on? How many different TLDs and SLDs are out there?
37 votes
1 answer
24k views

Can you have an email address with only the top level domain as the domain part?

The question title pretty much contains the question by itself, but as an example: Instead of having an address like [email protected](where example is the sub-domain of the TLD com) could you have ...
1 vote
1 answer
2k views

How to Block a Domainname with random TLDs in Postfix?

Can anyone please tell me how to reject all domains with a particular name, but regardless of the TLD? I want to block all mail coming from domains named bulksender, like bulksender.com, bulksender....
0 votes
1 answer
93 views

How to redirect mysterious bad referral URLs with dual top level domains

Over the last six months I have been seeing thousands of hits against non-existant, bad URLs under my company's domain (.NET CMS site running on Windows 2012 R2). For example, the correct friendly ...
0 votes
1 answer
69 views

which TLD for forwarding nameserver?

I want to setup 2 forwarding name servers with powerdns for customer sites. My question is if it matters the domain under which the name servers will be registered. Godaddy panel - for what I recall ...
0 votes
1 answer
1k views

PostfixAdmin not accepting .int Top-Level Domain

I was requested to configure a new e-mail server and provide a Management WebUI for it (I selected PostfixAdmin), in a Ubuntu Server 16.04 LTS. We need to support e-mail addresses with the format ......
1 vote
0 answers
209 views

How Can I Prevent Windows Server 2016/AD Installation from Adding TLDs Like .local to My Domain Name?

In a few days I have to reinstall a Windows Server 2016 Essentials instance on new hardware and would like to avoid an annoyance that cropped up in the initial install a few months back. To make a ...
0 votes
2 answers
203 views

Is .shared a reserved pseudo-TLD domain?

I am running a Fedora server on LAN. Each time it turns on, the screen tells me that I can connect to it via IP or my-fedora-server.shared . I know .local is a pseudo-TLD, but I could not find any ...
-6 votes
1 answer
96 views

How to claim a url that has not been taken? [closed]

I have a little bit of knowledge on hosting apache web servers running php using linux, and I do not want to buy a DNS from anyone, is it possible to claim an unused domain such as http://...
37 votes
3 answers
23k views

DNS just started resolving my server.prod addresses to 127.0.53.53

I have servers named like server.prod.example.com, and I regularly log into them as server.prod. Recently, these hostnames started resolving to 127.0.53.53. It turns out that ICANN recently enabled ...
2 votes
2 answers
664 views

Does it matter if the DNS server of a domain is on a different TLD?

Let's say I have the domain example.com using the name servers dns1.example.co.uk and dns2.example.co.uk. If I've understood it correctly, this means additional lookups since the .com doesn't contain ...
-4 votes
2 answers
298 views

Why do nameservers have their own names? [duplicate]

For example, lets say there is a hosting company, hostingcompany.com, with nameserver ns1.hostingcompany.com. When I type hostingcompany.com into my browser, my computer contacts a top level .com ...
0 votes
1 answer
67 views

Redirect from unsecured TLD to alternate secured TLD

I am wondering what the impact is on a website visitor when the website has had a TLD change. Take for example, https://subdomain.example.com. Let's say this domain changes to https://subdomain....
0 votes
1 answer
318 views

How are bare generic top level domains handled by client systems?

It is possible to get a generic TLD, such as .example. A DNS search for example would go though the root servers, which would find a glue record for example and forward the request to the designated ...
1 vote
1 answer
1k views

How many DNS Servers must I have? [duplicate]

I am trying to build my own DNS. I have one server which I would like to use as DNS server. Why, according to RFC2182 section 5 (https://www.rfc-editor.org/rfc/rfc2182#section-5) I must have TWO ...
0 votes
1 answer
1k views

Windows Server: How to properly configure a internal only subdomain

Let's asume, that I own the domain "example.com" and I should configure an internal subnet for my company. I read, that when you want to install Active Directory, DNS and DHCP in an internal network ...
-1 votes
1 answer
548 views

Mail Server Domain Serving Multiple Domains

I am hosting multiple domains on an email server where the SSL certificate is for the root domain name (let's say example.com). The rDNS goes to example.com, but the alias domains on the server are ...
-1 votes
5 answers
3k views

How long it takes for domain registrar to update TLD name servers

We accidentally changed the nameserver settings for our example.be. The changes were rolled back within minutes. So nameservers were set to the previous ones, provided by One.com. After 16 hours, our ...
1 vote
3 answers
908 views

Is it possible to serve a website on a TLD? [closed]

I have never seen a website hosted on a TLD (for example: http://com or http://ru) Is this even possible?
1 vote
1 answer
191 views

How should I request that a TLD implement DNSSEC?

I want to put pressure on the .social TLD so they can implement DNSSec, however the company I purchased the domain name is simply a reseller (NameCheap). I don't think that opening a ticket with ...
0 votes
1 answer
687 views

graceful DNSSEC for private TLD

To use a third party service, I can use their DNS name to resolve their domain names. Unfortunately they use some bad practices like using their own made up TLD, which we'll call tld hereafter. In ...
2 votes
1 answer
249 views

What are the supported TLDs for AWS Certificate Manager?

Just trying to setup either a wildcard *.mydomain.nz or mydomain.nz, but resulting in Invalid public domain failed status. Their learn more link doesn't hint at what TLDs are supported.
1 vote
1 answer
2k views

What is the meaning of Dot after TLD?

Id like to create a CNAME-Entry in strato.de This is the warning i have: The meaning is "The Server name must end with a point after the top-level domain". I used xxx.googlehosted.com. and it ...
17 votes
6 answers
22k views

How can I find the WHOIS server for any TLD? [closed]

I'm looking for a reliable and up-to-date list of WHOIS Servers to use in a whois script. Since the list changes frequently, it'd be nice if there were a resource I could refer to rather than having ...
0 votes
4 answers
2k views

Number of Periods in a Top Level Domain?

site.com is 1 period site.co.uk is 2 periods alpine.k12.ut.us is 3 periods? Is k12.ut.us the TLD? Or is k12 the domain name? How many periods can a TLD have?
13 votes
1 answer
899 views

Will I lose my .fr second-level domain once I am no longer a resident of Europe?

Hopefully this question is appropriate here. The .fr TLD stands for France and is managed by AFNIC. In order to register for second-level domains under this TLD, one is required to be a resident of ...
10 votes
2 answers
1k views

How to run own gTLD on my DNS server?

My organization shelled out for a gTLD, and we currently use 3rd party (Verisign) to host it on their DNS servers. However, there are 2 issues: we pay quite a bit for that yearly (that's the lesser ...
7 votes
5 answers
880 views

No IPv6 & DNSSEC support on cc-TLD? (practical implications)

I'm needing to register some domains that have country code domain extensions, but noticed that those TLDs do not officially support (A) IPv6 or (B) DNSSEC... What limitations or pitfalls should I ...
8 votes
4 answers
2k views

We don't own our Custom TLD domain name and that is our local domain name

I currently started working for a company that has made a boneheaded mistake and I am looking for the least painful way to correct it. Before I started, they named their local domain using a TLD ...
0 votes
1 answer
414 views

Modify DNS queries for TLD

There is an issue. They introduced new TLD ".dev" and I have internal zone "dev.companyname.com". Some internal users use short names to access hosts in this zone (i.e. they access hostname.dev ...
-4 votes
1 answer
160 views

What does a domain registrar do? [closed]

What does a domain registrar actually do? As in, do they facilitate you registering your domain name with the registry? Do they host your domain? I downloaded a couple of top-level-domain zones, they'...
1 vote
1 answer
413 views

Nginx domain matching for TLD wild card

I'd like to catch dev.*.sometld in NginX. But NginX doesn't accept: server_name dev.*.sometld; And I don't want to do: server_name dev.*; How can I match exactly "dev.*.sometld"? Thanks!
1 vote
1 answer
184 views

Custom TLDs, shortened URLs and usage

I'm curious about a few things with regards to TLDs and their allowed/semantic usage. I'm in the wine business and I currently own a .com domain. However the main domain name is quite long; not really ...