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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Delay for CNAME entries on Cloudflare, or any other restriction?

I have a domain like "example.org" at CloudFlare. I have a CDN at Amazon and would like a CNAME subdomain pointing to the CDN host. I have added a CNAME called "documents.public" pointing to the CDN ...
4
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1answer
352 views

Replacing an MX record with a CNAME that doesn't match the hostname

Today we have 5 companies that all use Google for email services example1.com. 3w IN MX 10 mail.Google.com. example2.com. 3w IN MX 10 mail.Google.com. ...
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3answers
55 views

Can we create a CNAME alias for something like docs.mysite.com/xyz [closed]

We maintain links to the documents coming from the following 3 sources. 1. docs.abc.com 2. docs.def.com 3. docs.ghi.com But we do not give a direct link to the user. So we give the links to the ...
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2answers
42 views

Domain Name Forwarding not working with github pages

I had my blog on github pages with a custom domain name blog.tamizhvendan.in and today I've moved it to a new domain name www.p3programmer.com by updating the CNAME record with www.p3programmer.com. ...
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1answer
29 views

Accessing original files on a domain which has A-Record redirect to tumblr [closed]

Hosting a tumblr on a custom domain, but allowing access to files that are at that domain, that are outside of the tumblr CMS. The custom domain I've got two A-Record DNS entries that point over to ...
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2answers
27 views

Nameserver as CNAME [duplicate]

We have a ton of client sites pointing to ns1.hostingcompany.com. I'd like to create whitelabel nameservers so we can easily move sites/servers as needed. For example, I'd like to try Cloudflare ...
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1answer
49 views

How to point 2 CNAME records to same external address? [duplicate]

I am fairly new to DNS managing. I have been attempting for a while now to point both my root domain @ and www to my GitHub account page user.github.io. I have a CNAME pointing www to ...
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1answer
35 views

How do I use SSL with Amazon S3 CNAME masked buckets?

I am successfully running an Amazon S3 bucket as media.mydomain.com. The problem is, I'm running an https site and I'm unable to link to files using https//media.mydomain.com. How can I switch to ...
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1answer
33 views

Heroku is not switching certificates after adding custom

I have an app on Heroku and I bought my own certificate, valid for myapp.mydomain.de. I added it to Heroku using their addon, SSL Endpoint. I have a CNAME record which redirect from myapp.mydomain.de ...
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1answer
63 views

Aliases in nginx/apache vs CNAME record?

In one of my nginx sites-available configuration file, I can specify a server name alias, like so: server_name example.com www.example.com; If I had an Apache server, I can do something similar ...
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1answer
41 views

Dynamic VirtualHosts (CNAME)

I have dynamically configured virtual hosts: UseCanonicalName Off <VirtualHost *:80> ServerAlias *.projects.domain.com VirtualDocumentRoot /var/www/projects/%-4 </VirtualHost> ...
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2answers
40 views

Following CNAME alias causes different HTML rendering

I am running Windows Server 2012 with Apache and ColdFusion 11. In our DNS manager on our local domain, we have set up a CNAME alias that points to our reporting server. When you access the the ...
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2answers
69 views

CNAME or A Record to Site under www root?

So I have a server that runs a webapp and I have recently installed our BMC Track-IT! help desk software on it. I also installed Track-IT! Web which is client facing allowing users to browse their ...
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1answer
46 views

Temporarily forwarding client site requests via DNS to hosted maintenance page

Is it possibly via DNS modification to forward a clients site requests to a maintenance page hosted on my own server? I would like the option of easily rerouting a clients' web traffic through DNS so ...
1
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1answer
97 views

Ngrok custom hostname add cname to subdomain

I have xyzfoo.com domain. I created a DNS CNAME record which points to ngrok.com I have my app running locally on http://127.0.0.1:5000/ but not running remotely on zyxfoo.com Does a subdomain need ...
2
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2answers
135 views

Changing an `A` record to a `CNAME` without downtime

I have a domain name (currently hosted on dyn.com) with an A record pointing to our production IP address. We're moving across to Amazon EC2 and are using a load balancer, with the recommendation ...
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1answer
348 views

Alias (CNAME) record cannot be added to this DNS Name [duplicate]

In Microsoft DNS, I'm trying to setup a simple DNS Alias (CNAME) pointing from domain.com to www.domain.com. I also want to forward www.domain.com to a specific IP. In other words, I want to do ...
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1answer
101 views

Set MX records on a CNAME domain (heroku app)

I have a heroku app on a subdomain like x.herokuapp.com which is mapped to my domain name via a CNAME record. I want emails to be handled by zohomail so I've tried setting up MX records but these seem ...
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2answers
163 views

Best CNAME TTL strategy for fallover switching

I've recently been thinking about the TTL of our DNS. We have A records for our servers and then CNAME records for the customer facing names. The www.example.com CNAME points to server-01.example.com ...
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0answers
34 views

CNAME Setup on Apache to Point to a Site Hosted On Another Server [duplicate]

I'm trying to setup a CNAME record on an Apache server. Basically, what I want is to redirect a site on a different server (e.g., http://siteName.com/index.php) to beta.siteName.com (which is on AWS). ...
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2answers
50 views

How to create a catch all Apache VHOST entry? [closed]

Hi I'm trying to allow users to domain map to us using CNAME's. Our server is running CentOS 6.4 and Apache. When I create a CNAME on another domain we have with the values: test.otherdomain.com -> ...
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1answer
88 views

SSL Certificate on CNAME

I have been reviewing the other posts regarding the issue, but having some trouble understanding since I've tried implementing it but still not able to figure it out. I have 2 servers. The main ...
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122 views

Why does RFC 2181 disallow MX record with a CNAME exchange?

According to RFC 2181 http://tools.ietf.org/html/rfc2181#section-10.3 10.3. MX and NS records The domain name used as the value of a NS resource record, or part of the value of a MX ...
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1answer
26 views

MS Exchange 2003 to Google Apps Migration Domain Verification

My company just decided to move to Google Apps due to lots of technical issues with our Exchange 2003 server. I have just signed up for the free trial account for Google Apps and one of the first ...
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1answer
33 views

Emails old MX, A and CNAME records [closed]

I need urgent help please. One of my clients had a domain(example.com) which they forgot who they bought it from 3 years ago. i transferred it to my hosting account as addon domain, then they told me ...
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1answer
60 views

Switching to different domain registrar and different host without any website or email downtime

What I currently have: Domain registered at register - oldregister.com Website hosted at different host - oldhosting.com Email hosted at different email provider - oldemailhosting.com What I want: ...
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2answers
198 views

How to point CNAME to Digital Ocean droplet

Having an issue trying to point a CNAME to my Digital Ocean droplet I created a CNAME on DNSimple and pointed it to the IP address of my Digital Ocean droplet: ironman4x4.adamgeorge.com I've tested ...
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0answers
64 views

How do large SaaS providers support A records? [closed]

According to RFC 1035 CNAME records cannot be used used in a zone apex because a CNAME record cannot exist alongside records such as SOA. This is frequently a source of frustration for those trying ...
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2answers
146 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). ...
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1answer
106 views

DNS server not resolving github page properly after two days

I had GitHub pages set up at mypage.github.io. I changed it to mynewpage.github.io with a new account and repository. I deleted the old CNAME and configured another CNAME in DNSimple to point to the ...
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1answer
187 views

Server responds to non-www but not to www. DNS problems?

The www. version of the site is not being routed. non-www version is served correctly. My registrar is with FastHosts, and I am wanting to move from 1and1 to DigitalOcean for web server with ...
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1answer
107 views

CName and A type sites hosted with and without SSL [closed]

Ok, I have a bit of a complicated set up that works for the most part, but recently I've had to migrate a couple sites to my server and I can't seem to get things working the way I want. I have 5 ...
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1answer
257 views

GoDaddy DNS point my Sub-domain to another Server? [closed]

I want my Root Domain to be still sitting on GoDaddy default IP. (To show the default GoDaddy page that we get whenever we buy a new domain). Then my sub-domains to be pointing to my own WebServer. ...
3
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1answer
287 views

Can I set a CNAME to point to the CNAME of a separate domain [duplicate]

I want to insulate myself from changes to the domain of the server we're using. For example, right now we need to point to: www.oursite.com. IN CNAME www.myserver.com. But the service we're ...
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1answer
192 views

Error 404 on CNAME forward

In my DNS manager, GoDaddy I made some A Record that points to *.mirror for my domain Now when I access URL 123.mirror.mydomain.com from the browser I can see that my app is loaded, and its all OK. ...
0
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1answer
216 views

What is the best way to configure Apache or AWS to support a Rails multi tenancy application that allows each customer to have their own domain name?

I'm building a Rails 3 SaaS site that allows for multi-tenancy. When a customer signs up they put in their own domain name, e.g. example.com. I need example.com to point to my SaaS application and ...
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2answers
357 views

Redirecting an entire domain to another in one CNAME record [duplicate]

Is there a way to redirect an entire domain to another domain through one CNAME record? For example [anyhost].domain1.com pointing to [anyhost].domain2.com where no matter what host name I enter in ...
0
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1answer
45 views

How to define www and .com as the canonical versions of the domain?

Trying to figure out how the DNS should be configured for the domains foo.com and foo.net so that: www.foo.com is the canonical version of the domain (foo.com should also still work) foo.net and ...
2
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2answers
204 views

Why use CNAME in Route 53+S3 combination

I have been going through Amazon's docs on using Route 53 in conjunction with S3 to serve static websites. The strategy they show is to do: example.com A -> alias to ...
13
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1answer
1k views

Why can't a CNAME record be used at the apex (aka root) of a domain?

This is a Canonical Question about CNAMEs at the apices (or roots) of zones It's relatively common knowledge that CNAME records at the apex of a domain are a taboo practice. Example: ...
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2answers
931 views

How do I make my godaddy domain automatically redirect to a github page [closed]

I recently bought a .com domain (call it mydomain.com) from godaddy and I'm trying to make it so that whenever someone types in mydomain.com, their browser will load mydomain.github.io. I've already ...
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2answers
86 views

DNS CNAME infinite recursion

DNS can handle recursions in CNAME fields. But I was just wondering what would happen if I do something like this, when configuring the DNS for the example.com domain: a IN CNAME ...
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2answers
165 views

How does this main domain have a CNAME record?

I was under the impression that only subdomains could have CNAME records: main domains need to define all their own records. However, apt-get.com seems to have only a CNAME record. How can this work? ...
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1answer
199 views

NAS share not accessible using a CNAME from Windows 2008 R2

I have a NAS filer share say \xyz.abc.def.com. I am trying to access the share from Windows server 2008R2 Server. We have a CNAME xyz.def.com pointing to xyz.abc.def.com. I am able to access the ...
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1answer
28 views

cname and wordpress domain map

I have a domain like this (www.example.com.br) and I'm also the manager for the domain and the nameservers too (the nameservers are Bind). Now I have a blog from wordpress.com and I wanted to map ...
0
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1answer
53 views

CNAME records query

I have a control panel with Enta which lets me mess with my DNS settings. So i have added a CNAME record to point to an IP address. Assume my website is called: www.example.com I have added a ...
0
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1answer
236 views

Redirect one domain to another's sub folder [closed]

I have a domain www.example.com that is shutting down, but I need to forward it to www.newwebsite.com/example/ incase there are any SEO benefits to it. The www.newwebsite.com is hosted on a LAMP ...
1
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1answer
245 views

redirecting www.www cname zone file

I have configured a zone fine on dns and now if i type the domain it redirect to www.www.domain.com instead www.domain.com Can anyoane help to sort it out and find what is wrong in the zone file? ...
1
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1answer
108 views

can't delete Resource Records through CMD in Windows Sever 2008

Final Update Problem erased in the least acceptable way: After re-installing the DNS-Server lead to even more problems, I re-installed the whole Operating System and - up to now - everything works ...
3
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1answer
281 views

A record required for MX record?

Previously our domain, let's call it ourdomain.com, pointed to an IP address (our web host). In addition, we use Office 365 to handle our domain email accounts. DNS records: ourdomain.com A ...