Questions tagged [dns-servers]

Domain Name System Server is a server that queries and assigns human readable URL or IP address.

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97
votes
4answers
114k views

Using multiple A-records for my domain - do web browsers ever try more than one?

If I add multiple A-records for my domain, they are returned in a round robin order by DNS servers. Example: 192.0.2.1 A example.com 192.0.2.2 A example.com 192.0.2.3 A example.com But how does web ...
28
votes
7answers
6k views

Should I use a domain name registrar's free DNS hosting, or host DNS servers with another company?

Should I use my domain name registrar's free DNS hosting service, or host DNS servers with another company? (or both?) What are some advantages to using a DNS hosting company separate from the domain ...
16
votes
1answer
11k views

CNAME: does a cname change the url that the browser displays?

I have a web site www.somewhere.com and I want the alias fr.somewhere.com. I set up a CNAME record for www.somewhere.com alias fr.somewhere.com. When a user types in http://fr.somewhere.com in their ...
13
votes
2answers
7k views

What is the maximum number of DNS A-records you can use on one domain?

Is it correct that there is no limit to how many DNS A records can be set on a domain? My boss asked me this and it made me curious, I can't find anything online.
12
votes
2answers
3k views

Can I use different nameservers for different subdomains?

Suppose I have example.com and the nameserver I'm using is the one from the hosting server where I'm hosting the main site, say mainhosting.com. Now suppose I add a new subdomain e.g. bla.example.com ...
5
votes
2answers
10k views

Slow website response? How can I fix this issue?

I have pingdom monitor on my website: http://stats.pingdom.com/t68xhgex256f/375513 For North America (big target market) the response time is 1-2 seconds. This is far too slow. Is there anything ...
5
votes
3answers
4k views

What is needed to add DNSSEC to my site?

What is needed to add DNSSEC to my site? Is it like HTTPS/SSL that I have to buy a certificate, or can I generate one myself to use? Is there any free way I can use DNSSEC or do I have to pay for ...
5
votes
1answer
589 views

DNS forwarding used to point GoDaddy DNS to Heroku app: this doesn't work from a corporate network, why?

My domain on GoDaddy is set up with DNS forwarding to the Heroku app. This works fine from all the internet connections I've tried except for the one at work. How can I troubleshoot this issue? Is it ...
4
votes
3answers
8k views

Cloudflare is it safe?

I am thinking of signing up with cloud flare, but since i'm not very familiar with the technical side of things, I wanted to ask here first. How safe is it to sign up with services, like cloud flare? ...
4
votes
1answer
8k views

How do I determine if a redirection was due to DNS or the webserver?

I had an issue this week where the webhost altered my DNS settings, but the website, whether I typed in example.com or www.example.com would always resolve to www.www.example.com and I couldn't figure ...
4
votes
2answers
684 views

Buy domain without static, public IP address

I'm about to buy a domain, just for a personal website, where the availability is not that crucial at all. As of now, I don't have a static, public IP. My question is, if I could buy the domain (e.g....
4
votes
2answers
95 views

Name Server / DNS Lookup

What is the difference between a name server lookup and a DNS lookup?
4
votes
1answer
1k views

What is the maximum practical TTL

I'm just curious to know what the maximum practical TTL value is for an A entry. Somewhere I found the TTL value can be as high as 99,999,999 seconds, about 3.1 years, but simply that would not be ...
4
votes
2answers
958 views

How to make so that a first domain name redirects to second one but the URL displays the first domain name?

I have first domain name registered with some domain name registrar, for which I don't have web hosting account, only dns hosting. I have second domain name registered with godaddy, with web hosting ...
4
votes
1answer
3k views

creating unlimited sub domains programmatically through api

Note Consider each subdomain as unique application instance For information about application architecture visit https://stackoverflow.com/questions/11272776/using-phusion-passenger-nginx-running-...
4
votes
1answer
350 views

DNS taking weeks to propagate just in my area

It has been over two weeks since I changed over my DNS information on my new host. I still have my old hosting account setup through HostGator and it is still using the HostGator nameservers in my ...
3
votes
8answers
3k views

When buying a domain what are the differences between nameservers (NS records) and other DNS servers?

When I buy a domain I always get confused between the two and manage to make a mess of the settings before I finally get it right, but still without clearly understanding what their roles are in ...
3
votes
2answers
14k views

Why is my DKIM invalid?

When I use http://dkimcore.org/c/keycheck to test my DKIM it says This is not a good DKIM key record. You should fix the errors shown in red. DNS query failed for 'key1._domainkey.board67.com':...
3
votes
2answers
702 views

“There is no subdomain here.” error in creating (one/multi)-level sub-domains

Objective: I want to create multilevel sub-domains. For example, I've a domain like "domain.com," and now I want to create some sub-domains for it. It should be noted that what I'm working on it, ...
3
votes
2answers
273 views

PostmarkApp inbound domain creation for MX record redirection

I'm trying to use Postmark App service (https://postmarkapp.com) to forward email to my subdomain to my PostmarkApp server. I'm trying to use inbound domain forwarding by configuring my MX record to ...
3
votes
3answers
1k views

How can I change the order of the DNS records in the `dot.tk` DNS server?

I have a DNS record with three A records: the main site, and two backups. However, when clients perform a DNS lookup, they reach a backup site. How can I change the order of the DNS records in dot....
3
votes
1answer
886 views

Separate DNS server for subdomain.example.com

I have a website which has the address: subdomain.example.com. I would like to know if it can have its own DNS server like Route 53 (NS records, CNAME, A, etc.) or it is tied to the example.com?
3
votes
2answers
11k views

Setup Reverse DNS with Cpanel and WHM?

I needed to set-up a reverse DNS via cpanel. I followed the steps in this tutorial but it didn't work: http://docs.cpanel.net/twiki/bin/view/11_30/WHMDocs/RdnsForBind. I use my own name servers ...
3
votes
1answer
601 views

New DNS record won't resolve on a custom name server that is functioning

I'm having trouble moving the DNS for a site. We migrated our site from a shared-hosting server to a virtual private server (VPS). The custom name server for the VPS account has been running domains ...
3
votes
1answer
82 views

OS X Server DNS management

I have an OS X 10.6 Server running, which has PHP, Apache, MySQL, and DNS running on it. I want to take the DNS management out of the Server Admin App. I know that the DNS configuration files (the ...
3
votes
2answers
99 views

Avoiding downtime after DOS and change of IP

I have a small company designing, programing, and maintaining websites. I host my websites on a shared hosting plan (cpanel). I received an email 2 days ago that there was a DOS attack and the ...
3
votes
1answer
780 views

How to track conversion funnels across multiple domains with Google Analytics, getClicky, and CloudFlare

What we need: We need to implement funnel and conversion tracking across multiple domains. Currently, we have funnels that start in one domain but end in another domain. We have full control and ...
3
votes
1answer
5k views

Process of DNS resolution using nslookup starting from root nameservers

I understand broadly the theory of how a DNS resolver goes through the domain hierarchy querying nameservers to resolve a domain name from the root namespace downwards however I would like to try ...
3
votes
2answers
514 views

Domains with no name servers?

I have a few ccTLDs (.my) domains and I've just realised that there is no name servers for them at all. I wonder how that is even possible? Did the vendor whom I bought the domains from do something ...
3
votes
0answers
302 views

How do I categorize my website (domain)? [duplicate]

I recently purchased a domain and created the website. I found that this belongs to "None" category and so found blocked in cyberoam firewall. I tried with all possible meta tags at index.html. But ...
3
votes
4answers
173 views

How to provide email accounts without changing the DNS?

My client have registered a domain name through BigRock.in, and my client needs 10 email accounts, so I decided to provide it through my web hosting (re seller account). My question is - How to ...
2
votes
3answers
1k views

Safely turning off CloudFlare?

I'd like to selectively turn off CloudFlare ("the orange cloud icon") for some subdomains. But this would cause downtimes for people with certain network configurations, especially those with exotic ...
2
votes
1answer
2k views

DNS: How can I determine which IP a subdomain is associated with?

I bought a domain(tohid.ir.tc) from a hosting company. it seems that it is a sub domain of this domain(Ir.tc). it made lot's of problems for me. I don't now to which DNS server it is pointing. both ...
2
votes
2answers
217 views

My new DNS change works from America but not Sweden

Several hours ago, I changed nameserver and DNS info on one of my domains at my domainregistar. When I accessed the domain from my home computers and when my friends accessed the domain, they get to ...
2
votes
2answers
2k views

Domain Name Not resolving with webhost nameservers and without www

Searched all over and tried playing with httpd.conf , nothing works. The domain name can be resolved with www.domain.com but without www its does not resolve. Advice for A Records does not work. I ...
2
votes
2answers
6k views

Why does flush DNS often fail to work?

C:\Windows\system32>ipconfig /flushdns Windows IP Configuration Successfully flushed the DNS Resolver Cache. C:\Windows\system32>ping beautyadmired.com Pinging beautyadmired.com [xxx.45.62.2]...
2
votes
3answers
169 views

Should I use the domain registrar or the web hosting name servers?

Let's say that I have the following website example.com, the domain registrar is provided by one company and the website hosting is provided by another. do I use the registrar name servers e.g ns....
2
votes
2answers
1k views

How does smart DNS proxy work?

I have been looking on the web, but there aren't a detailed explanation on how it works and not the concept of what it is for. There are really two things that I don't understand. How does it fake ...
2
votes
1answer
99 views

How does DNS verify owner identity?

I was editing my DNS records through my hosting service (nearlyfreespeech) and I got to wondering, how does the international DNS network know that the person who's editing the DNS records is actually ...
2
votes
2answers
7k views

Hostinger host and tk domain optimal DNS configuration

I want to configure tk domain with hostinger. I don't want to use the redirect option, so I'm trying to set the tk dns. In the image below are shown the parameters of hostinger that I have put in dns ...
2
votes
3answers
5k views

Where do I set my SPF record for domain managed by Yahoo?

Many years ago we purchased a domain from Yahoo. Now our website is hosted on Amazon EC2. The output of an SPF checking tool (http://www.kitterman.com/getspf2.py) says: SPF records are primarily ...
2
votes
1answer
103 views

Cannot send mail after changing DNS records for website to a new host

I am trying to move my site to a different provider. The mail server I am using at the moment I want to keep. My DNS management is done at a different service. I am trying to figure out what the right ...
2
votes
1answer
272 views

AWS: pointing A record to load balancer on A record causes incoming email to stop functioning

I have a webserver running on an EC2. On that EC2 I'm receiving email. I've created a load balancer (ELB) directing traffic to EC2 In route 53: UPDATED A record for example.com to point to ELB ...
2
votes
2answers
265 views

What happens if the secondary ns record contains a record not present in the primary ns record?

Will this record be used by internet services or not? I'm moving the ns records from one server to another while keeping the site on a third webhost. I do not have control on the primary nameserver ...
2
votes
1answer
339 views

Can I get multiple subdomains for different dns?

I have a domain registered with a domain vendor and hosting provider. I tried out with 000webhost as hosting service, so I changed my domain settings to the 000webhost dns addresses. At 000webhost I ...
2
votes
3answers
2k views

Site not accessible without www in url - Error 400 bad request

A site that I am developing works with the format www.domain.com but when typing the domain without the www i.e domain.com I receive a error 400 bad request. How can I enable non-www for my site.
2
votes
2answers
76 views

Domain registrar changed DNS without warning

We have had a very long an damaging outage which lasted around 24hrs due to a change in our DNS servers by our registrar. What happened (according to our registrar) was that for some reason their ...
2
votes
1answer
49 views

One of our DNS servers is hosted by our old host and one by the new. The old doesn't have the correct values and can't be changed

Because of misbehavior of our old hoster justhost.com, our domains including victorporton.com do not act as they should. But justhost.com ignores our queries saying that they can't help because our ...
2
votes
1answer
43 views

MX Record propogation time - Email working sometimes and sometimes not

I have tried to migrate my hosting from Hostgator to AWS yesterday. I have removed the DNS of HostGator and made it to the default of the service provider from whom i bought the domain and created A ...
2
votes
1answer
448 views

How can I transfer a domain from Squarespace to another registrar?

I have a client with a domain registered at Squarespace. The website has been migrated elsewhere, but now I am stuck trying to transfer the domain. I am specifically using Namecheap as my domain host,...