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

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dig command on linux returning differing results

Running the command dig against a particular domain, returns the previous name server details. For example; domain.com. 41068 IN NS ns1.nameserver1.com. Now if i run the command dig ...
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1answer
39 views

What is the minimal possible bind configuration that works?

I have been trying to make bind work on Fedora 21, and haven't succeeded doing it. I read a few tutorials which basically instructed me to create a zone for my domain and an inverse mapper, then ...
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2answers
39 views

How does a client get the zone file?

I understand the role of a NS record, but what I don't understand is how a client (e.g. my computer) get the NS record in the first place? Please help me fill in the gap: I want abc.com I ask ??? ...
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0answers
17 views

How domain provider's DNS name server entries work? [migrated]

Scenario: You buy domain abc.com from provider XYZ. You want to host your own DNS server on example.com (on ns1.example.com ns2.example.com). The domain and both subdomains will point to same IP. XYZ ...
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0answers
30 views

Unable to set up name servers [migrated]

I've set up a server at my house running cPanel and CentOS. I'm unable to point a domain to the server using nameserver's. I can how ever point it to my server using an A record. I've set up port ...
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3answers
3k views

Is it true that a nameserver have to answer queries over TCP?

I'm the process of setting up a monitoring of DNS servers of several large web hosts. My goal is to compare their dns servers response times by tracking their response to ping. In the process, I ...
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1answer
26 views

Make nameserver instead IP address for domain redirection [closed]

I have many domains which are pointed at server IP 100.10.xx.xx. 100.10.xx.xx hosts a website: example.com I want all the domains to point to server name not by IP. Because I fear the complexity ...
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5answers
567 views

Free Dynamic DNS Nameservers [closed]

I recently set up a server that I want to use as my primary hosting platform. So far, I've mapped some domains to it by setting up A records for them that point to my dynamic IP. As my IP can change ...
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2answers
2k views

Missing nameservers reported by parent

The following error came while i checked my dns configurations.But i havent mentioned this name servers in the doamin nameserver FAIL: The following nameservers are listed at your nameservers as ...
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1answer
405 views

Why is my dns server being queried for domains that I don't host?

I installed dnstop to monitor my nameserver running bind9 and was surprised to see it being queried for other domains that I don't host. I am just wondering if this is normal behaviour, or have I ...
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1answer
42 views

SRV Records, how to [closed]

Okay, I have been looking all around for an answer yet I couldn't find anything explaining SRV records in depth or at least not being a simple to do tutorial. I am aware, that my question is basic, ...
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0answers
25 views

Can I Mix Multiple Nameserver Sources in resolv.conf [migrated]

In the list of nameservers in resolv.conf, can I use different nameservers (one from ISP, one from Google, etc..) in each line or does it all have to be from same source? Example: nameserver ...
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0answers
6 views

What are the disadvantages of having a domain name with special characters? [migrated]

What are the disadvantages of owning a domain name that contain special characters? Some special characters are, for example: áéíóú, àèìòù, äëïöü, etc. These characters open the possibility of ...
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2answers
823 views

Does this NSLOOKUP timeout with ZoneEdit mean their DNS servers are down?

My DNS zone record appears to be degrading. NSLOOKUP on www.whatpub.org gives a timeout. Am I right in saying this means the two ZoneEdit nameservers I use (ns2.zoneedit.com & ns17.zoneedit.com) ...
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1answer
47 views

Name servers not resolved leading to DNS lookup failure

So it's difficult to give a short title to this but I'll go over a brief back story... So I have the domain repo-itechy21.tk and have hosting with 000webhost. (ew) it's been a good 30 hours and my ...
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2answers
696 views

Something's up with BIND9…slave zone giving SERVAIL for all queries in domain

I've got a domain set up with bind9 on Debian Lenny acting as a slave to my DNS hosting provider's servers. The exact circumstances are I think irrelevant, but I have allowed transfers out to my ...
19
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7answers
39k views

Can you lookup a domains past nameserver & mx record history?

If is possible to find out which nameservers a domain was previously pointing too? I need to try and find where a domain was previously hosted so that I can try and gain access to an old hosted email ...
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0answers
28 views

Domain not responding to A record

I had domain set to amazon EC2 instance. Yesterday decided to switch to the DO dedicated server, changed A record of domain to the DO server ip address. It's started to work pretty fast(less than 10 ...
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3answers
122 views

Adding a domain and subdomain to server

Greetings and please excuse me if this is a very basic question. The problem: Currently I have bought a domain (crazywebsite.com) from Godaddy.com and I have an unmanaged VPS in Site5.com. I have ...
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2answers
57 views

Domain not resolving from some locations

I need help collecting some sort of proof of what might be wrong here Problem description location 1 Ping <domain.net> Ping request could not find host <domain.net>. Please check the ...
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1answer
53 views

Subdomain DNS appears to be resolving from different nameservers than main domain

I have an inexplicable issue with DNS for a domain and a subdomain. I first noticed that doing an A record lookup on the subdomain is returning different results than what is in the DNS config. Then I ...
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1answer
71 views

dns hierarchy not returning ip address

(DNS1 ,WWW1, Gateway1) (sub-internal network) (DNS0,WWW0,Gateway0) (internal network) DNS1: 192.168.250.3/24 WWW1: 192.168.250.4/24 Gateway1: 192.168.250.1 /24 (internal) :: 192.168.0.150 ...
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2answers
164 views

what does this mean Superfluous name server listed at parent: ns52.domaincontrol.com?

I get this message from pingdom Superfluous name server listed at parent: ns52.domaincontrol.com A name server listed at the parent, but not at the child, was found. This is most likely an ...
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0answers
23 views

How can a domain's NS records point to a subdomain of itself? [duplicate]

As I understand that if I have domain A.com, it must be managed by another domain like ns1.B.com, ns2.B.com $ dig ns alibaba.com ; <<>> DiG 9.9.2 <<>> ns alibaba.com ;; ...
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44 views

How do I give each Virtual Host in Apache a domain name on a local network?

Background information. I have a server (running Debian Wheezy and Apache 2) at which I am to set up several Virtual Hosts to allow students to host their own website for development purpose. I am ...
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1answer
58 views

domain name not recognized by Facebook app

This issue may seem more appropriate for stackoverflow at first, but I suspect that there is an underlying server issue that I'm unable to diagnose. I'm just not sure what's wrong. We have a site ...
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1answer
41 views

Server migration dns doesn't resolve

I have a problem migrating accounts from one server (SERVER_1) to another new (SERVER_2). I have a domain DOMAIN_1 with some NS created on the domain provider (CDmon): ns.DOMAIN_1 pointing to ...
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3answers
2k views

Running my own Dynamic DNS server

I have a few servers on which I run nameserver trough webmin/bind. Now I have a computer at home that I want to access from anywhere in the world, the only problem is, my IP adress changes often. ...
7
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3answers
18k views

how do i set the dns server on godaddy with AWS?

I have a domain name on godaddy and i also have a amazon web services account. I have an EC2 instance and i want to change the dns nameserver on the godaddy control panel to aws and i have no idea ...
0
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1answer
124 views

BIND: Forcing authoritative nameserver answer with no data on non-recursive requests (Research purposes)

Edit: I've simplified target goal as suggested by Andrew B. The goal is basically setting an authoritative name server to only give real answer on recursive requests, which means breaking the ...
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1answer
31 views

in Debian rescue shell: cannot resolve FTP/HTTP addresses

After accidentally removing a package needed for DHCP, my Debian installation has lost internet access. After rebooting from Debian-netinstall disk, and entering a rescue shell, the situation is as ...
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1answer
70 views

How to edit domain's nameservers when no service “takes responsibility”?

I think I may have made a mistake when migrating my DreamHost registered domain to Amazon's Route 53 service. I didn't modify the DNS settings on DreamHost's end during the migration. So now, my ...
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1answer
31 views

DNS Zones: criteria to create new zone delegations

If I'm not wrong, within a domain name a company owns, their administrators have complete freedom to create as many cuts (zone delegations) inside the domain tree as he wants, but, inside his own ...
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1answer
36 views

How does a resolver know a DNS response is authoritative?

The title says everything about me question. How does a resolver know the response comes from an authoritative name server? An equivalent question: what flag or field is marked by a name server to say ...
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8answers
15k views

Finding all domains registered in a nameserver

Up until now, I was pretty confident that it was pretty much impossible to list all the domains handled by a nameserver. But apparently, there exists a couple of websites on the Internet that are ...
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2answers
36 views

What is the benefit of cloudfares or inkapsulas etc ddos protection [closed]

My Server get even more attacked via DDOS. And im thinking about buying a service like cloudfare or incapsule for preventing DDOS. But i dont understand one thing. When the attackers see that the ...
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1answer
52 views

DNS Zone manager - Server name and NS records mismatch. Pingdom errors

http://dnscheck.pingdom.com/?domain=leadassign.com&timestamp=1413917580&view=1 Lists errors: "Superfluous name server listed at parent: ns1.io-servers.com.", etc. I think its because in the ...
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1answer
59 views

Parked domains on Spamhaus DBL

I've set up a nameserver to park a bunch of my domains (similiar to sedo, bodis etc). Everything is working well. Unfortunately, all my parked domains are instantly listed at spamhaus (DBL). No mail ...
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2answers
134 views

How to first setup DNS on my 2k8 server to have ns1.example.com and ns2.example.com configured?

I'm running a site on my dedicated server with windows server 2008 , iis & dns has been installed without any configs, have one dedicated ip address. when I type the dedicated ip of the server in ...
0
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2answers
98 views

How does my registrar (Namecheap) let me set up a CNAME record on the apex domain?

Namecheap seems to let me create a CNAME record on the apex domain, which I thought was contrary to the definition of a CNAME record: It works (correctly loading up my static site from S3). ...
0
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1answer
61 views

How to set up a DNS authoritative nameserver with just an IP?

I'm looking to set up my first DNS server, after having used registrar or web host provided DNS for years. It's going smoothly for the most part, but I'm having a bit of trouble understanding how to ...
0
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1answer
43 views

Requests not arriving at my own nameserver

I want to handle the dns requests for my own domain. For example I have the domain dnsrequest.me and the nameserver is pointed towards my server 178.62.242.84 (whois confirms this). So when someone ...
0
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1answer
27 views

Nameserver setup Bind

I have setup a domain and nameservers as per below, but when I dig the domain, it is not working. The setup is as follows: I want a domain named iheartlotto.com, and the nameservers to be ...
0
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2answers
27 views

Bind Nameserver Setup

I setup bind on my debian box, and have setup my zone files to have my nameserver defined. When I dig, using for example: dig @123.456.789.123 ns1.mynameserver.com where 123.456.789.123 is the ...
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2answers
2k views

Is there a free website to track domain IP and DNS changes? [closed]

I am looking for some free website to track the changes of IP and DNS of a domain name, I know a lot of websites that shows this information, but they only show the last IP and nameservers, I want to ...
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4answers
89 views

Testing DNS configuration of domain by using hosts file?

I'm currently migrating a website to another server, and want to test the DNS configuration (more specifically, email mx records) before moving the domain over. I've configured the DNS on the new ...
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3answers
115 views

Point 1 domain to 2 different DNS [closed]

Is it possible for a domain name to point to 2 (or more) different name-server? For example, here I have a domain name testdomain.net, and I want to point it to ns65.domaincontrol.com (GoDaddy ...
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0answers
28 views

NameServers not updating

I have a domain on Godaddy, in the morning I have updated the nameservers to point to Linode Servers, after about one hour, everything was ok. Now, when after sometime, when i'm trying a dig on the ...
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1answer
40 views

site not working for all except me

I have a dedicated server and a domain name which is pointing to my shared hosting. Two days back I changed the name server of the domain name to this server. Till the propagation time i been working ...
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2answers
44 views

Do DNS servers get queried in round-robin, random or some other fashion?

I know for a fact that A records and most other records are round-robin. MX records have priority types. What about D(NS) servers? Both in the context of NS record and static configuration in client ...