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Questions tagged [nameserver]

A name server is a computer server that hosts a network service for providing responses to queries against a directory service.

A name server is a computer server that hosts a network service for providing responses to queries against a directory service. It maps a human-recognizable identifier to a system-internal, often numeric, identification or addressing component. This service is performed by the server according to a network service protocol.

Examples of name servers is the Domain Name System (DNS), one of the two principal name spaces of the Internet. The most important function of these DNS servers is the translation (resolution) of human-memorable domain names and hostnames into the corresponding numeric Internet Protocol (IP) addresses, the second principal Internet name space which is used to identify and locate computer systems and resources on the Internet.

Source: Wikipedia.

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Should I run my own DNS recursor or local cache daemon?

I am on AWC EC2, as my server is going to make a lot of query for third party domains, I am thinking the following options install nscd on all servers use the default ec2 name recursor install my own name recursor just use 8.8.8.8 I am hesitate to…
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why are there several nameservers for my domain?

Like I have for my domain: ns1.somedomain.com IP: 122.some.ip.here ns2.somedomain.com IP: 122.some.ip.here Why there are 2 or more of them? The hosting is just one server and if that falls neither one will work. True?
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How are name server requests ordered?

Say I have a domain name registered with a website. On their site it says the following: Domain Name Servers listed in order: ns9.zoneedit.com ns18.zoneedit.com ns3.freedns.ws Are name servers read in a particular order? Or does it use the…
user1104783
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Difference between multiple NS and NS having multiple A

I found this Can an NS Record Point To Multiple A Records?, but wonders what is the difference, if any. For example: mydomain.com. IN NS ns1.myhost.com. mydomain.com. IN NS ns2.myhost.com. ns1.myhost.com. IN A 111.222.333.1 ns2.myhost.com. IN A…
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Setting MX records with Registrar vs. Nameserver Host

I'm a bit confused about what has happened with one of my client's email accounts. My client registered a domain at dotster.com. She wanted to start using email for that domain before we had her website up, so I set her up through Google Apps mail,…
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Tool to check DNS records from multiple nameservers?

Is there a desktop or online tool that will query multiple name servers (dozens ideally) to get an idea if and how a DNS record change is propagating? I know of many free tools, but they only check one name server. I'm thinking something more…
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Why is my domain still going to the wrong server?

I have a domain for which I updated the nameservers to point to my new server not long (~ 1 hour) ago: The WHOIS report tells me it's been updated: http://www.dnsstuff.com/tools/whois/?ip=ablazex.com&cache=off Why is that when I try to access the…
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Why are many DNS servers not returning the namservers for my domain correctly?

My website has become widely inaccessible and I don't know why. Up until recently I have been serving my website through cloudflare, so was using their nameservers. Recently I started using Route 53, so I changed to Amazon's name servers using my…
Mark Fisher
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Setting different NS records as authoritative on authoritative DNS

I have DNS servers for a domain set to one set of authoritative DNS servers on the registrar. However, those DNS servers zone file for the domain have a different set of NS records for it. Some DNS servers are passing the request on merrily to the…
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What's required for a nameserver to be registered?

I'm trying to change nameservers for some of my domains at GoDaddy, but I occasionally run into "Nameserver not registered" problems, and then I'm not allowed to set the nameservers. Here are the cases I've tried, and I still don't understand what…
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How to pick the right nameserver

Assuming the following structure: example.com registered in the United Staates (ISP 1) example.ch registered in Switzerland (ISP 2) The server registered in Switzerland (ISP 3) Everyone of the 3 ISPs is offering their own nameservers to use (for…
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What has priority: nameservers or a records?

If I have a domain name with nameservers pointing to Webhost One, but have an A Record that points to Webhost Two, which host would the domain name bring me to? I'm pretty sure the A Record takes precedent, doesn't it? I currently have domains with…
bozdoz
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Too many Bind query (cache) denied, DNS attack?

Once Bind crashed and I did: tail -f /var/log/messages I see a massive number of logs every second. Is this a DNS attack? or is there something wrong? Sometimes I see a domain in logs like this: dOmAin.com (upper and lower). As you see there is…
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Understanding the DNS domain lookup mechanism

The specific query that led me to try and unpick this process was: Will a DNS lookup for a subdomain, such as assets.example.com, be faster if the parent domain, example.com, has already been resolved? By my (naive) understanding, the basic process…
cantlin
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Can you use IP V6 for name server records

This might sound like a stupid question as I have a very basic grasp of DNS management, but I'm looking for a new VPS and most providers only offer one IPV4 address, which doesn't validate on http://dnscheck.pingdom.com/. Most VPS providers however…
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