A CNAME record or Canonical Name record is a type of resource record in the Domain Name System (DNS) that specifies that the domain name is an alias of another, canonical domain name.

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DNS record for thousand domains [closed]

I'm working at a small webhosting company. I have to set up the autoconfig (Thunderbird) and autodicover (Outlook) files, so that user (who have their own domain names, like www.userxyz.com) could set ...
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1k views

Sendmail issue with IPv6

I have an email server configured with multiple-instance of sendmail running each on different IPv4 and IPv6 addresses. Everything is running smooth until a point where for some domains/emails ...
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5answers
641 views

Many domains/sites hosted on same server, CNAME alternatives to avoid writing same IP in DNS?

I have many sites (each one with its own domain) all on the same cPanel hosted server (let's say server IP is 1.1.1.1 and server main domain is myserver.com) All these domains use third party DNS ...
3
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2answers
7k views

Will kerberos work with CNAMEs if I have the SPN created for the A record as well?

We are currently setting up a SQL 2012 environment and it will be used for storing data that will be accessed by SSRS in sharepoint integrated mode. We will be using Kerberos for authentication. ...
3
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3answers
3k views

CNAME domain to another domain, but keep different SPF records for the two?

SCENARIO: mydomain.com is the main website, we do send/receive mail using address@mydomain.com. mydomain.com DNS has got an SPF record "v=spf1 a mx ~all" mydomain.net is just an alias for ...
6
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2answers
360 views

Will an MX record “follow” a CNAME record?

I have a situation I'm trying to work through that I'm not entirely sure how to solve. Here's the situation: I have a domain, let's say sub.otherdomain.com, that I want to set up e-mail addresses ...
0
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1answer
102 views

Domain not resolving with CNAME

I'm really struggling to get a website up and running for the NHS. Apologies in advance as it's the first time I've had to setup a domain without using NS records so I'm a tad out of my depth. I ...
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229 views

Windows Server 2008 DNS server CNAME resolution and TTLs

We have a Windows 2008 SP2 DNS server configured to use root hints. We have a certain MX record lookup that it periodically fails to resolve for our client machines. The lookup is for the MX record ...
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2answers
79 views

Multiple domains resolve to one domain [closed]

I have the following scenario: domain1.com domain2.com domain3.com domain4.com Whenever someone types www.domain1.com or www.domain2.com or www.domain3.com she should be redirected to ...
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3answers
220 views

Why does Google use A record for www instead of CNAME? [closed]

Is A significantly faster than CNAME in this case? $ dig www.google.com ; <<>> DiG 9.8.1-P1 <<>> www.google.com ;; global options: +cmd ;; Got answer: ;; ...
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1answer
152 views

CNAME Setup on Different Server

I have domain and hosting at GoDaddy.com with domain earthline.info. But my email is located at CBN.net.id. I have setup the mx with this configuration: But for CNAME, i'm not sure what i must ...
0
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1answer
153 views

Heroku apex record setup

I have a heroku application and I want to configure my domain to redirect the apex record to www.. Are there any free services I could use for this purpose? I mean other than rolling my own solution ...
0
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1answer
186 views

Regarding Cnames, A Records (Internal Network Forwarding to External Domain)

It is not possible to do a redirect from internal DNS to external domain correct? We have a subdomain test.internaldomain.com and internally we want it to point to external url, including full path: ...
0
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1answer
98 views

Apache + Tumblr Custom Domain

Have searcehed high and low for answer to this, but haven't found one. Problem: I want to use a subdomain (blog.archivism.ca) of my domain (archivism.ca) as my tumblr custom domain. I created the ...
0
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2answers
3k views

Email forwarding and CNAME records

I have a Heroku app and a domain that maps to it. The host records are set up as follows: Now I want email to admin@mydomain.com to be forwarded to my gmail account. I was told by the support for my ...
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3answers
223 views

CNAME redirects behaving differently for two domains

I have two domains - oliverhaslam.com and ojhaslam.co.uk. Both are registered with the same company, and both have A records pointing to my server's IP address. Both also have CNAME records pointing ...
3
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2answers
997 views

Is subdomain (CNAME) slower than using original address?

I am no expert at this at all, so I am wandering is there a difference in speed, etc. when using some subdomain (CNAME record) over the original address? For example, when using CDN like Amazon S3. ...
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2answers
323 views

Cname to multi-level heroku subdomain

I'm trying to create a cname that points from my custom domain (s.mydomain.com) to a multilevel subdomain hosted on heroku (me.myapp.herokuapp.com). I've created the Cname s.mydomain.com with the ...
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3answers
357 views

DNS: CNAME as www record

I'm considering changing the DNS www records of a domain name from an A record to a CNAME. Various questions and answers on serverfault are not as clear cut as I'd hoped. Also, many DNS checking tools ...
3
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2answers
807 views

SSL, CNAME, and multiple domains

Say I have an SSL Certificate for a super cool site that I offer, like https://secure.coolsite.com/ (Not my site, just an example). Then lets say I had a customer who wanted to have a CNAME to my site ...
2
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1answer
794 views

map subdomain to another subdomain via cname

Question: I need to get DNS configured to point a subdomain from one domain (which I will generally not be controlling) to another subdomain on a different domain name. Testing this process using a ...
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1answer
60 views

Circumvent ID10T domain parking after MyDomain software migration?

I have been a happy customer of MyDomain.com, which handles domain stuff for http://JonathansCorner.com, which is my personal site handled correctly and http://JonathanHayward.com, which is CNAMEd to ...
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2answers
2k views

CNAME point subdomain to another domain

I know this has been asked before in various forms, but I've tried all the suggestions and had no luck (or maybe skills). I am trying to point a subdomain (mail.abcd.com) to Rackspace's hosted ...
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1answer
107 views

Cname record to dns server

I have a nameserver of my hoster called ns1.hoster.com. I would like users of my (hosted) application to use my branded nameserver called ns1.mybrand.com. ns1.mybrand.com points to ns1.hoster.com ...
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1answer
110 views

How to redirect the subdomain of a domain - Blogger [closed]

I have a blogger blog put up, and Google told me to add some A records in order to enable a www-free redirection to the full www domain. So by adding those, visiting bitfalls.com (which is my blog) ...
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1answer
1k views

Issue with CNAME and Virtual Hosts

I'm using Apache and I have a CNAME DNS record for sub2.sub1.domain1.com that points to sub1.domain1.com And I have an A DNS record for sub1.domain1.com that points to the IP. Then in my ...
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2answers
72 views

Alias one set of Subdomains to another

I have to domains that I want to effectively mirror one another on select subdomains. Let's say they are pirates.com and ninjas.com and i want ninjas to mirror the content on pirates. When I visit ...
0
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2answers
157 views

CNAMES between two domains

This is a two part question PART 1 I have two domains domain1.com, with a subdomain (sub1.sub2.domain1.com) domain2.com, with no subdomains. If I create a CNAME of corp.domain2.com, that points ...
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3answers
5k views

Dynamic IP and MX Record

I have read that I "must not" use CNAMEs in MX record entries. My in-house mail server is connected to the internet with a provider where the IP changes every two/three months. I have a subdomain ...
3
votes
1answer
4k views

I get a 403 when requesting a JS file from CloudFront

This is new to me so please excuse me if I have no idea what I'm talking about (: I'm trying to set up my own CDN with CloudFront and S3 through a subdomain by adding a CNAME to that subdomain to ...
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1answer
152 views

Redirecting SubDomain To A Custom Address [closed]

I need some help because I'm new in this thing so please. I bought a domain from BigRock and I hosted it on blogger so I want to redirect my subdomain to a link. I mean any link like my fb profile ...
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1answer
197 views

Replacing old server with new but different hostname & same IP

We have an old server 2000 and lots of users point to it by hostname and by its IP e.g \\server1, we have a new server 2008 R2 with new name serverlocation1 All folders and data have been sync'toy'd ...
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1answer
91 views

DNS CNAME record - connection was reset

I am quite new to DNS and have set up a CNAME record for a new domain that I have bought pointing at subdomain.domain2.com. When I put in my URL http://www.domain1.com I get The connection was ...
4
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1answer
596 views

Is stage.*.example.com valid for a wildcard DNS CNAME?

We are creating a web app that will have vanity subdomains such as user1.example.com. Since we'll have many subdomains, they need to be dynamic. We want to have a public "stage" area where we can test ...
8
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2answers
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How long does it take for a Route 53 CNAME to work?

I have set up a CNAME in Amazon's Route 53 to point to another server. This is a new CNAME for a new subdomain pointing to an existing domain name. With other DNS providers that I've worked with, new ...
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1answer
98 views

More than one CNAME for S3 website

Is it possible to have more that one CNAME for amazon web services S3 web site? In docs it is said that bucket name should be equal CNAME. mysite.com and www.mysite.com as aliaces do I need to ...
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1answer
90 views

How can i set new domains to respond to my server [closed]

I would like to create a page for new clients in my hosting. When someone register a domain, sometimes that person don't have a dns, or the hosting didn't created the account. So the page will not ...
0
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1answer
68 views

Detecting TLD for localization

I have many TLD's for my domain, for US users it's .COM, for German users it's .DE, etc. I redirect them all to the .COM domain using CNAME records. The reason is to prevent getting a penalty from ...
0
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4answers
3k views

CNAME not resolving

I've got a domain (example.com) registered with godaddy and pointed to nameservers hosted by linode. I've got a multisite WordPress install on linode (blogs.com) and I want to point the domain to a ...
0
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1answer
157 views

Confused about CNAME and subdomains

I have an app that sits at exampleapplication.com. It's a rails application sitting on an Apache/Passenger stack. The app is set up to use subdomain constraints to point to user accounts (e.g. ...
0
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2answers
304 views

Do I need an SSL certificate if all traffic is being redirected to another secure domain?

I currently use a CNAME to silently direct all traffic for http://cdn.domain.com to my Rackspace Cloud Files domain at http://cxxx.rxx.cxx.rackcdn.com. Now I also want to silently direct all HTTPS ...
12
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2answers
16k views

Do CNAME records require time to propagate?

When I typically update DNS ("A" records) I will allow for an extended period of time for the changes to propagate throughout the root nameservers. Do I need to make this same allowance for updates ...
0
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2answers
202 views

Do I need a subdomain or CNAME?

I have a domain with Godaddy (mysite.com) which is pointing to my AWS EC2 box. Now I need a launchpad link on my website so that if the user clicks on it it would point to launch.mysite.com This ...
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votes
1answer
30 views

Integrate an hosted e-commerce solution in a web site hosted on a different server [closed]

In mydomain.com i need to integrate an ecommerce page that i would like to be hosted by a different provider. For what I understood I have to create a subdomain store.mydomain.com from the cpanel and ...
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1answer
209 views

Serving static site with Amazon S3 [closed]

I want to host my static site www.something.com on Amazon S3. I've followed these instructions however I'm still having trouble. Specifically when I browse to www.something.com I'm sent to whatever my ...
0
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1answer
600 views

Is whitelisting a CNAME enough?

We are working on setting up a list of domain names we need to have whitelisted for educational institutions who use our site. We are using AWS S3 as well as cloudfront. In our cloud front, we ...
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1answer
3k views

Gmail DNS Settings - Do I need CNAME and an A Record?

I'm just a little confused... I'm using Gmail for my mail service, and have followed their instructions. I wanted to allow users to access their email via mail.mydomain.com, but just hoping to get a ...
4
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2answers
349 views

Detect CNAME chains in BIND zone file

Are there any tools available to automatically detect (and optionally correct) CNAME chains in BIND zone files? I am trying to clean up a rather large zone file (15,000+ resource records) so I'm ...
0
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1answer
103 views

CNAME subdomain of subdomain with content on first subdomain

Okay so maybe that title is a bit confusing but here is what I'm trying to do: I have a subdomain with content at my.example.com I want to set up something like sub.my.example.com This does not ...
3
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1answer
5k views

cpanel - I'd like to add CNAME for domain.com [duplicate]

I want to change an A record of my root domain www.domain.com to CNAME dyndns.org. But the cpanel gives me the following error: already has a SOA record. You may not mix CNAME records with other ...