Questions tagged [nameserver]

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How does DNS name resolution work? [closed]

Could someone point me to a good, comprehensive explanation of how DNS name resolution works? I've seen a few simplified examples where a client connects to the root DNS server ("."), which ...
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Host can't resolve domain names when docker container is running

I'm running minimal Debian 10 dist. I have some strange issue with domain name resolving while docker container is running. Simple curl ifconfig.io (or any other domain / or any other tool) fails when ...
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Run qemuarm inside docker container

I am trying to run qemuarm inside docker container and trying to ping 8.8.8.8 but it got stuck at root@qemuarm:~# ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8): 56 data bytes I added nameserver 8.8.8.8 and ...
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1 vote
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Why nameserver 8.8.8.8 can solve Ubuntu network connection issue

I have a Ubuntu 18.04 machine that cannot ping www.google.com, it says ping: unknown host www.google.com However, after following some online help by add dns-nameserver 8.8.8.8 to the end of /etc/...
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How does the host command find results?

I don't know if this is the right SE site for it, sorry if it isn't. My problem: When I do a host (debian command) request for the TXT records of a domain, lets take superuser.com for example, can ...
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How to map clients' domains to my dynamic server IP address?

I have a site builder (like wix) and I want to allow customers to easily map their domains to my server. My server IP may change so I cannot suggest users create A record. I want something like ns1....
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Where does the primary DNS server get its file from?

Disk file Network Access There is a nice explanation on Are Domain Name Server and Name Server the same thing? But I still confused about answer. I know primary DNS server caches entries so answer ...
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Why can’t a domain name be resolved to the IP even when there is an A record in name server?

I am adding my IP to https://www.dnswl.org/selfservice/ because I need to get the reputation increased because for a very strange reason, e-mail accounts in Gmail or Hotmail save mails sent from my ...
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BIND does not answer authoritatively

I want to use BIND as a public nameserver for the companies domains. I'm using a fresh installation of ubuntu server 20.04.1 and BIND 9.16.1. The issue is that BIND never answers authoritatively. I ...
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0 votes
1 answer
511 views

Bind DNS(Nameserver is unreachable.)

Good day! I would like to on how to bind dns to a NAT? Our old server was using a pulbic IP but due to change in service providers, we were given only an option to do port forwarding. So I have set up ...
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Is there a reliable way to find out if people are still using a domain as a name server?

I had a domain I was using for a nameserver with my hosting. I had to move hosting, but due to propagation all of the sites and/or emails could potentially go down as I moved the nameserver across. ...
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How should I fill the nameserver field when I try to buy a domain?

I have a virtual private server(VPS) with some IP address like http://111.222.333.444/, and wanted to publish my Angular-NodeJS project on it, so I tried to buy a domain for my website from another ...
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1 vote
1 answer
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Can one zone file contain multiple domains?

I know a DNS server can manage multiple zone files. But can a zone file manage multiple domains? Or each domain must be put in a separated zone file? Those shared hosting companies use a pair of name ...
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3 answers
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Having multiple web services run at home on the same ports (80 and 443)

Is there a possibility to run several webserver-applications from my home network? So with the same IP forward port 80 and 443 to different devices, depending on the domain name. Right now I use ...
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0 votes
1 answer
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Setting up named in arch linux

I am trying to set up a domain on an Arch Linux VM. Following is my named.conf options { directory "/var/named"; pid-file "/run/named/named.pid"; // Uncomment these to enable IPv6 ...
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Domain transfer from Network Solutions to AWS Route 53

I am looking for a solution to mitigating 2 days of downtime. I reached out to network solutions and they do not have control over the TTL of the Name Server records (which is 2 days or 172800 ...
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Whether CNAME is transfer to NS value by domain provider?

Such as, I registered a domain example.com on GoDaddy, the below is my analysis in GoDaddy: Host Type Line Analysis @ CNAME default 23he.16cdn.com. @ NS ...
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redirect traffic to aws S3 / Cloudfront but keep dns and email at namesecure

I have a domain registered at Namesecure but want to host the content on AWS S3 (also using Cloudfront). I want to keep DNS and email handling at Namesecure. How should I go about this? Thank you! ...
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How to fix systemd-resolve on ubuntu?

systemd-reslove seems to be working However DNS is slow if nameserver 127.0.0.253 It works fine if I replace that with nameserver 8.8.8.8
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1 vote
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Is there a way to force Bind9/Named to always request recursion?

From what I can see, RD bit is set on queries only when the resolver is using a forwarder. If it uses a hint or a master record it does not set the RD bit. I know this is configured so that ...
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2 votes
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Nameserver 127.0.0.53 unable to resolve domain names

I know there is an easy fix to the problem by adding nameserver 8.8.8.8 to /etc/resolve.conf but this is merely a hack and not a proper trouble shoot of the problem that caused the problem. If I am ...
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unable to access my site after nameserver change

A few days ago, I purchased a domain on godaddy and set its nameservers to netlify's nameservers as a temporary change. The site and domain worked fine and I viewed it on chrome on my phone and PC. ...
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1 vote
1 answer
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Using a private domain to connect with a server

I'm a bit struggling with using a domain to connect a domain with my server. First of all, I'm using a Debian Linux(of course actually Raspbian, because the server is running on Raspberry Pi 3). Let'...
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1 vote
1 answer
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How to force a computer to use a specific nameserver for lookups?

I know that you can edit /etc/hosts to make certain hostnames resolve to specific IPs, but is there a way I can force my machine to use a certain nameserver for a domain? For instance, if I own ...
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2 answers
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nameserver in /etc/resolv.conf vs /etc/sysconfig/ifcfg-eth0 on Centos 6 / RHEL 6 server

If nameservers are configured with both nameserver entries in /etc/resolv.conf and DNS1/DNS2 entries in /etc/sysconfig/network-scripts/ifcfg-eth0 on a Centos 6 / RHEL 6 server, which one will take ...
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2 votes
1 answer
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If a WHOIS search returns 428 domains on the nameservers for that domain, does that mean that server is hosting 428 domains? [closed]

I've just done a WHOIS search on whois.sc for our company domain and the nameserver section says that our nameservers "(has 428 domains)". Does that mean there are 428 domains hosted on the same ...
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1 vote
1 answer
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How come this query shows the same address for non-authoritative answers and authoritative answers?

So, if i query slash16.org: nslookup -type=ns slash16.org Non-authoritative answer: slash16.org nameserver = ns-686.awsdns-21.net. slash16.org nameserver = ns-1989.awsdns-56.co.uk. slash16.org ...
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4 votes
3 answers
560 views

What does a public nameserver actually do?

I am trying to understand the purpose of public DNS nameservers (public as in not an SOA; like 8.8.8.8). I executed a dig +trace command, and, as far as I can tell, the only time the nameserver is ...
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0 votes
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571 views

Is It Possible To Have Bind Answer Authoritatively For Local Domains?

Just as the title says: is it possible to have Bind (named service) on a Linux machine (Fedora 27, Server Edition) answer authoritatively for local domains or, at the very least, answer in such a way ...
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2 answers
2k views

Can A Site Be Reached Without A Router Or ISP?

From what I understand, when going to site, the router first goes to the ISP's Resolver Name Server. From there, it either finds a cache of the site's IP, or it goes to sub-sequent Name Server's to ...
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1 answer
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How can a site have the domain name www.com? [closed]

I noticed that www.com is a valid domain name. Is this because the .com nameserver has an IP registered for the name www, and therefore its a valid domain name? If so, what is the purpose of the www ...
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Switch website Name Servers without or with minimal downtime?

Facts: My domain name is registered at Namecheap. My website is hosted on Netlify via an "A" & a "CNAME" record that points to them. My email MX records are Google's. The issue: Although I'm ...
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0 votes
2 answers
235 views

Workaround for non-static IP's on website hosts

I am able to control a domain of example.one.com. I want to host the site on host that only provides a dedicated IP, not a static one. The managers of one.com will not set a DNS record to send example....
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-2 votes
1 answer
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What's wrong with this BIND zone definition? [closed]

@ IN SOA @ ns.mycompany.com. ( 0 ; serial 1D ; refresh 1H ...
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2 votes
1 answer
148 views

How do DNS name databases are built?

Some online security checking tools have a database of DNS names linked to an IP. For example on https://www.ssllabs.com when I request stackoverflow.com (151.101.129.69), the result contains : ...
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5 votes
4 answers
1k views

What information can an ISP record solely from DNS queries?

I realized recently that my VPN's DNS requests were transmitted to my ISP's DNS server (even though my HTTP and HTTPS requests were properly transmitted via the VPN). I did some research and have a ...
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2 votes
0 answers
643 views

Cannot configure local DNS server on Slackware

I want to configure bind (v9) on Slackware (v14.2) so that example.com resolves to the IP address of the local Apache server. This is my /etc/resolv.conf: # Generated by dhcpcd from eth0.dhcp # /etc/...
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0 votes
1 answer
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How to point domain to VPS when A Records are not available

I have bought a domain and VPS from two different providers. To host this domain on VPS, I need to create A Record in domain control panel that points to VPS IP (this is what I was told by VPS ...
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2 votes
2 answers
566 views

DNS LOC Purpose

So, I recently discovered the LOC record type for DNS, which allows you to identify a location for the related server. It appears that the usage has some ambiguitiy and could identify the server ...
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2 votes
0 answers
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DNS propagation not happening on local network

I've read lots of similar questions and answers but nothing fits. I updated my website's nameserver to reflect a change with my hosting company. Did this on Friday or Saturday with my registrar (...
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2 votes
2 answers
980 views

If top-level domain servers return only the domains of nameservers, how do DNS providers contact said nameservers?

So, as I understand, after a DNS provider (e.g. Google's 8.8.8.8) has queried the root name servers for the top-level domain servers (e.g. "com"), it asks the top-level name server for the domain of e....
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2 answers
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Resolve my domain to the IP address of another domain [closed]

I have a domain mysite.com with access to set any nameserver. I want to point it to the IP address which is behind mysite.xy.com, because the ip address is dynamic, but this url always is updated with ...
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1 vote
1 answer
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Routing subdomains with AWS and Route 53

I am following these instructions from Amazon: http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/CreatingNewSubdomain.html#CreateZoneNewSubdomain As I need to route a subdomain to a GitLab ...
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0 votes
1 answer
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Which DNS configuration is better for a MX record type?

Which DNS configuration is better for a MX record type? 1.- Having a single MX reord type mx.domain.com resolving to a two A record type: MX 10 mail.domain.com. -> A 1.1.1.1 ...
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1 vote
1 answer
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Docker can't resolve hosts which require multiple nameservers

I'm running a Docker container which clones some git repositories and builds a project inside of itself. It clones code from 2 different repositories: one is public github.com and the other one is ...
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5 votes
1 answer
3k views

How can I check if a name server supports DNSSEC?

My Advanced Tomato Router uses the local ISP DNS servers. How can I see if those name servers support DNSSEC? Similar to How can I check if a domain uses DNSSEC? but not domain.
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Multiple domain nameserver registrations

I registered a domain on dot.tk (domain registration company for .tk) and forwarded it to my website hosted elsewhere. This resulted in A record being created pointing to my website's (static) IP ...
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2 answers
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Whats the correct WHM setup for AWS EC2 with ROUTE53 custom nameservers

I currently have a reseller hosting account, and I want to setup and move everything to a new hosting platform on AWS I have setup an EC2 instance on AWS and installed WHM. Its running fine. I setup ...
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2 votes
1 answer
553 views

How to access expired domain host from old DNS record?

I'm trying to access a website whose domain has just expired. The old IP address resolves to 206.225.92.33 which is the parent hosting company and not a dedicated address. The domain name was ...
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-3 votes
1 answer
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Multiple Name Servers on one Domain

Is it possible to have two sets of nameservers for one domain... e.g. ns-1382.awsdns-44.org needed for site running of AWS and NS29.DOMAINCONTROL.COMNS30.DOMAINCONTROL.COM required by another site ...
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