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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App Engine: Redirecting domain (not google apps) to appengine without Host records

I would like to redirect a domain to app engine, but my Domain provider only allows me to set information for Primary DNS and Secondary DNS. It means that there is no possibilities to set host records ...
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3answers
1k views

How can I list the cname location of a printer in Active Directory?

I'm working on a new print server running Windows Server 2008 R2. The shared printers will be listed in Active Directory. The print server has a host record with one name, but I want to users to ...
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1answer
149 views

Add CNAME record to Ubuntu to Verify Domain for Google [closed]

I would like to add a cname record to my Ubuntu VPS to verify a domain for Google apps. Just looking for the most simple commands to do this. Any help is appreciated.
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2answers
1k views

How do you set up dynamic cname records?

The project I'm working on requires that we mask AWS EC2 host names with our own subdomains. For example: ec2-176-34-163-40.eu-west-1.compute.amazonaws.com would map to gf53ef.domain.com and ...
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2answers
3k views

Not receiving mails from some senders due to DNS config

I have noticed a peculiar behavior of my google apps domain. Most of the mails come through as you would expect, but over a period of time I have come to the conclusion that mails from certain senders ...
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1answer
173 views

Easy way to shorten up bind9 zone config?

Is there an easy way to put some kind of variables into bind9 zone files? Lets say i have a bunch of different zone-files, and i would like to define my ip's in one config file. So that i can make ...
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1answer
397 views

Cookieless Domain redirect in WHM/cPANEL

I am currently trying to get my head around in understanding how to set-up a "cookieless" domain using WHM / Cpanel - unfortunately without any success at this moment. I have a Magento store and I ...
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3answers
4k views

How to redirect domain A to domain B using A-Records and CNAME records only

I have 2 domains hosted with different hosts. I need to redirect Domain A to Domain B. Unfortunately I can't do a 301 redirect from Host A, but can only modify/add DNS entries (A-Records and CNAMEs) ...
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1answer
144 views

map www.abc.com to www.t.xyz.com using cNAme

I have a parent domain as www.xyz.com and a sub domain www.t.xyz.com the site is hosted on www.t.xyz.com I have another domain www.abc.com i want to map the www.abc.com to the sub domain ...
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2answers
329 views

Adding CNAME entry to nginx for cdn rewrite

I am using apache + nginx (for serving static content) and just bought a CDN. I have added a CNAME entry to my CDN URL, which should be cdn.example.com and pointing to the original cdn url. ...
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1answer
56 views

Hosting vs DNS and domain management

I have the following problem. I have a reseller hosting services which offer to my clients. One of my clients want to keep the domain and DNS management with him. What information he needs to point ...
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2answers
510 views

WWW record in DNS (type CNAME) pointing to a site is recommended?

I have a reseller host the sites of my clients are hosted. One such customer wants to keep the DNS management with them. For this, they request the CNAME for them to do the following change in DNS: ...
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1answer
992 views

Wildcard 'A' record overriding CNAME record

I have a Wildcard * A record for self-registration of subdomains by users on our web app. All works fine. I now need to set up an alias for support.mydomain.com to point to mydomain.freshdesk.com. ...
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4answers
571 views

should Apex domains (and records) be avoided?

I'm building an app that is hosted on Heroku. Heroku suggests that Apex Domains are a Very Bad Idea -- they suggest using CNAME records and a workaround service like Zerigo or DNSSimple. However, ...
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1answer
148 views

Response time more than doubled after switching from A to CNAME on Heroku

I recently switched my Heroku app DNS setting from using A record at the apex to using CNAME record at www subdomain, because of the scenario outlined in this blog post: ...
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1answer
115 views

Transferring NS records to a new server

I feel like that was NOT worded well, but here is my current predicament. I recently had a GoDaddy dedicated server, and decided after their customer support failed to do anything but disappoint, to ...
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1answer
452 views

How to resolve issue… Amazon ec2, elastic IP setup with Route 53 not working?

In this post it says its best to use CNAME only for Ec2 / route 53 setup: EC2/Route53: How do I assign my new domain name to an instance?. However, I added: *.mysite.org. CNAME ...
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1answer
93 views

Using aliases for MX records

I have a domain, say example.com, and don't run my own mailserver so I use my ISP's, say myisp.com, so in my DNS the MX records point to ex1.myisp.com and ex2.myisp.com. I also have an ill-conceived ...
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1answer
47 views

CNAME based php hosting

CNAME based php hostingI have an application that lets users get a *.onemobi.net account (ex. bob.onemobi.net). Now what I would like to do is give the user the option of being able to use their own ...
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2answers
166 views

CNAME, A, and Apache - Why does one work and not the other?

I have a website, example.tld. The DNS has an A record for example.tld that points to 1.2.3.4. Is there any difference (as far as Apache is concerned/configured) whether a sub-domain ...
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1answer
239 views

Root domain redirect, otherwise A record redirect

I would like to redirect every incoming request via A record to another server (url-shortening service) unless the root is requested.... Is this possible? If so, how? If not, why not? A simple ...
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3answers
247 views

creating subdomain entry(ies) — should I add a CNAME record pointing to @ or create a new A record?

Is it better to have a fewer A records and dozens of CNAME records or vice verca? One (or few) A records per unique IP and many CNAME records per A record: @ 3600 IN A 123.123.123.123 a ...
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2answers
85 views

Domain mapping via hostname instead of IP

Is it possible to configure DNS such that: anysubdomain.clientsite.com has CNAME record to abc.ourservice.com abc.ourservice.com has A record to our dedicated IP (so that if we change servers in the ...
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2answers
707 views

Upgrading Zerigo DNS plan through Heroku failure

I'm hosting an app on Heroku and have a basic DNS plan with Zerigo. I tried to upgrade the Zerigo plan from "basic" to "tier 1" through the Heroku command line tool and received the following error: ...
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2answers
98 views

How to point a domain to another address without access to add CNAME zone

Ive bought some domains from a hosting service and i want to point them to my other server. I did so usually by adding a DNS zone of type CNAME to list of DNS es which is set in my domain ...
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1answer
382 views

How does pointing a CNAME on my domain to a service-provider's server enable them to offer customized services?

I'm trying to understand how web services which have you setup CNAME records on your domain pointing to their servers work. For example, following the instructions on LaunchRock ...
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2answers
316 views

Elastic Load Balancing using a chain of domains/hosts

I've setup an elastic load balancer on EC2 which (for example) has the public DNS (A Record) of: LB-165746761.eu-west-1.elb.amazonaws.com I've then registered a domain which I want to act as my ...
3
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1answer
100 views

Google Apps is routing mail unexpectedly

This has been going on for two days now and it's really bugging me. I've owned a domain name for a few years now. Let's call it example.com. I've had Google Apps free edition set up there for a few ...
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3answers
127 views

DNS issue with migration of web site to new server

I have a legacy system that I'm attempting to make a significant configuration change to, but am not seeing a way to do so cleanly. The state I inherited consists of a web site hosted on two app ...
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1answer
450 views

How do I disable Sendmail expansion of CNAMEs for a particular domain but not globally?

I have an issue due to "split DNS vision" where email is generated at a host and sent via a smarthost (relay) to an external system out of my control (business partner). The generating server has ...
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0answers
156 views

Large scale custom domain support for a hosted web service

I am running a hosted platform for publishing Markdown documents. Currently I offer a subdomain per user, but the number one request right now is custom domains. My server stack is NGINX and uWSGI ...
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1answer
463 views

Microsoft DNS Server (Windows 2008) CNAME issue

I am using the DNS role in Windows Server 2008 R2. I have my records set up correctly with the following CNAMEs: {removed domain names for security} Currently, only the 'wsp' cname works. All the ...
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1answer
69 views

Subdomains for MX using CNAMEs

Let's say I've got a wildcard subdomain CNAME for root domain: *.domain.com CNAME domain.com domain.com A 130.71.45.31 This works well for websites, e.g. subdomain.domain.com. Now let's say I have ...
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2answers
202 views

nginx www.domain.com vs domain.com virtualhost

I have an http block where I include virtual hosts for the different domains hosted on the same server. For each virtual host I do: listen domain.com:80; Now, domain2.com works fine. However, when ...
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2answers
971 views

How to set up the CNAME in DNS zone record to work with Unbounce

I'm trying to run split testing on some landing pages I "designed" with Unbounce, but it requires that I set the CNAME record for my domain/sub-domain and I'm having trouble figuring out what is the ...
2
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2answers
2k views

Can CNAMEs be used to point to Name Servers?

Here's what I need: www. and root of domain are hosted on the old host beta. is hosted by the new host Here is the problem: Old Host does not allow ANY editing of DNS Records on their Name ...
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1answer
199 views

How to configure S3 or DNS to handle incomplete name (sans www) for web site?

I have a set up a bucket called "www.mydomainname.com" to host my website and I have configured the CNAME such that "www.mydomainname.com" points to the my endopint ...
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1answer
180 views

Are username subdomains needed for white label cname applications?

I'm having a SaaS site developed and will be offering white label service with some memberships. During user registration I will be asking users to enter a 'username' which will be used for a ...
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4answers
2k views

CNAME : how to setup DNS to return A record based on website?

I have a query regarding setting up servers. Suppose I have multiple websites to host. foo.com bar.com hello.com I may or may not to have specific servers for them. Suppose an arbitrary ...
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2answers
488 views

Can I have a CNAME and an A-record for the same domain name?

I have a dedicated domain mydomain.com and I have a Windows Azure service that has to send email from addresses @mydomain.com. I found a mail service that agrees to send email "on behalf" of my ...
1
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2answers
71 views

DNS, Domain name settings for ASP Host

I have an account at an ASP hosting company and the URI is: me.example-host-company.com I'd like to my own domain name so I create a CNAME record for a subdomain which has its destination set to the ...
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2answers
899 views

How to create a CNAME a DNS name at the level abc.xyz.mydomain.com (sub-sub-domain) if my DNS host only supports xyz.mydomain.com (sub-domain)?

I need to create the CNAME record: abc.xyz.mydomain.com = verify.azure.com but my DNS provider (www.freeparking.com) only allows me to create it at the sub-domain level (i.e. xyz.mydomain.com). I ...
4
votes
2answers
166 views

Can I use a CNAME to point to a 3rd Parties NS Servers? [duplicate]

Possible Duplicate: In DNS can an IN NS point to a CNAME? I am in the process of migrating hosting providers. Currently I have significant number of domains pointed at my current NS ...
2
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1answer
164 views

Default CNAME when DNS quering

I have a domain, with a number of CNAME records to www.mydomain.com mail.mydomain.com ftp.mydomain.com Now, what I would like to achieve is that if any other subdomain is queried or the domain ...
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1answer
261 views

Netfilter/iptables - Accept connections from an DNS CNAME

So I'm trying to accept connections on port 80 only from those IPs whose reverse DNS has a CNAME alias like, for example, *.test.mydomain.com: 1.1.1.1 resolves to boo.foo.com and ...
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1answer
815 views

Elastic Load Balancer + Domain setup

How do I assign the ELB (Elastic Load Balancer) to my domain. Do I need to do it for the main domain (ie. domain.com) or sub domain (www.domain.com). My registrar is godaddy - how I do it? - What's ...
1
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1answer
118 views

Cname and Amazon S3 failure

I had a quick question. If you set up a cname for your amazon bucket and lets say your main amazon s3 bucket goes down, does cname you created serve files, in other words, do your files get redirected ...
3
votes
2answers
165 views

DNS CNAMEs — Is the client actually redirected or not?

I believe this is a simple question, I thank you in advance for clearing it up for me. Using this example: foo.domain.com CNAME bar.example.com bar.example.com A 192.168.1.19 ...
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1answer
160 views

Incoming CNAME and CPanel

I'm doing some research into setting up a Saas app like SquareSpace where a user can point their domain name e.g. example.com to example.myapp.com using a CNAME record. I'm using a CPanel/WHM managed ...
2
votes
1answer
421 views

Can you use a CNAME to Whitelabel DNS?

Can I create the following CNAMEs with "mydomain.com" to effectively whitelabel "mydnsprovider.com"'s nameservers? ns1.mydomain.com CNAME --> ns1.mydnsprovider.com ns2.mydomain.com CNAME --> ...