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How do you set up dynamic cname records?

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http://serverfault.com – 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 ec2-123-31-124-60.eu-west-1.compute.amazonaws.com would map to sdfrh5.domain.com There will always be list available that stores the relationship between the domains. This list changes ALL THE TIME. Meaning in one minute we could have 100+ new ec2 instances started, and the next all could terminate. I'm wondering how to set up our Ubuntu server to handle this case. Thanks (HowTos)

xskl's picture
Submitted by xskl on 05/25/2012

Stories similar to How do you set up dynamic cname records?

I'm trying to login to a Ubuntu box hosted on AWS EC2, which has a route53 domain setup. The domain is resolved to the proper IP, e.g.

I'm getting started with puppet on ec2 using the following guide.

https://help.ubuntu.com/12.04/serverguide/puppet.html

In the very last step when I try to sign the puppet client from the puppet master I get the following error

root@ip-10-248-27-66:/home/ubuntu# puppetca --sign ec2-54-245-56-210.us-west-2.compute.amazonaws.com err: Could not call sign: Could not find certificate request for ec2

I am not able to scp from one EC2 instance to another EC2 instance.

This problem from what i can tell is isolated to PowerDNS. The servers are running two packages pdns-static-3.0.1-1.i386.rpm and pdns-recursor-3.3-1.i386.rpm on the most recent version of Amazon Linux.

The amazon ec2 loadbalancers are assigned a CNAME with multiple hosts. Below is an example of the actual behavior.

custom domain for sub domain? 32 weeks 4 days ago

Hi there.

I have a client with domain that uses Squarespace custom domain CNAME records. Now they ask if its possible to open 2 sub domains (login and shop) and set 2 own custom domain CNAME records for those?

I have now set up sub domains but started to think if its really possible to set unique DNS records for those?

I purchased an amazon ec2 instance, where I configured a webserver. Then I purchased Route53 to handle dns, where I set my custom domain to point on the Elastic IP.

The fact is that when typing my domain name the server web answers using the AmazonAws.com domain!!

I'm running varnish in front of apache2.

How can I fix that?

Using SSH in a GNOME terminal is fine. But I want to use it in a Unity window (the location text field, ctrl+l).

I need a help on setting-up a custom CNAME records for two sub-domains which will point to main domain name http://www.domain.com/.

http://it.domain.com/ (Italy)

http://fr.domain.com/ (France)

I do not not mean here sub-domain re-direction which can be easily done through cPanel "subdomains".

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.