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How to create an external dns server with Amazon Route 53

Posted by Xaus Xavier Nadal 9th on December 2014

Create an external dns server with Amazon Route 53 is as simple as having Amazon AWS account and follow the steps below will show you, but first of all, what is Route 53 and what is Route53?

Amazon Route 53 It is a DNS service in the public cloud.

Amazon Route 53Amazon Route 53 normally used to do load balancing (ELB) between instances EC2, mapping instances EC2 or to simply map buckets S3, but we in this article we will use the power of a DNS Cloud for securing our environment, for have a scalability in such a sensitive service like DNS and provide high availability.

But Amazon Route 53 goes further and leaves us the possibility by Health Check to monitor the life and performance of our Web applications, for example if you have 2 instances EC2 (web server) and one of the webs stops we operate can by Route 53 immediately redirect traffic to another instance to continue offering service.

It also leaves us the possibility to buy domains (Although as personal comment I would like more extensions were available and better prices). But you know that when closer the DNS server, the domain web server fewer hops should make a customer and better latencies have to open the web before the competition always remember the good practices of SEO.

Benefits of having a DNS server on the public cloud as a service.

1.- not affected by viruses (In the absence of an operating system controlled by us is safer by definition).


2.- No system updates (We saved maintenance).


3.-No failures have 0-day in Microsoft Windows.


4.- And as I said the CTO of NASA "We rely more on Amazon than in our own infrastructure for securing our systems".


5.- Operating costs tend to 0.


6.- The cost of mounting an instance EC2 t2.micro is like riding 27 areas (domains) on Amazon Route 53.

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Posted by Amazon AWS, DNS, Route 53 | 1 Comment »

As cancel import duties on Amazon AWS of

Posted by Xaus Xavier Nadal 18th on May 2014

As we discussed in the previous article we can migrate virtual environments to Amazon AWS a fairly simple, but there are times that the task of migration to AWS failure and different instantiated Amazon EC2 in our environment we can not eliminate. The error that appears when you remove an instance EC2 is similar to the following.

Error terminating instances


Operation TerminateInstances is denied for the instance (s): i-0321dc43 (. Instance is being used by VM Import task import-i-ffx1u0r0 No charges are Incurred by stopped instances.)

To cancel tasks import in Amazon AWS and not wait for the expiration time of the task (which are usually 7 days) we access the command line of our AWS client and run several commands that I will explain below to stop the migration tasks and to finish the EC2 instance normally.

The first is to know the region where we have done the work of import or export, I remind you that with the command ec2-describe-regions or short command ec2dre we can see the list below and ensure a little nomenclature of each region

REGION us-east-1
REGION eu-west-sa-REGION 1-1 REGION east-northeast-ap-northeast ec1.ap 2-1.amazonaws. com REGION west-us-us-REGION 2-1 west ap-southeast REGION-1 ec2.ap-southeast-1.amazonaws .com

In our case the region where we have test servers we use to make the migration from VMware virtual environment is Ireland and will look there if we find a slope of finish work to remove instances work EC2 blocked by import

Run the command ec2-describe-conversion-tasks or the short name ec2-dct

C: \ AWS \ CLI \ bin>-region ec2dct eu-west-1
TaskType ImportInstance TaskId import-i-fflbhk06 ExpirationTime 2014-05-24T18: 09: 03Z Status active StatusMessage Pending InstanceID i-5d33ce1d Diskimage DiskImageFormat VMDKs DiskImageSize 6436109312 VolumeSi ze 30 AvailabilityZone eu-west-1c ApproximateBytesConverte d 0 Status active StatusMessage Pending: Downloaded 650117120 TaskType ImportInstance TaskId import-i-fh5aml6s ExpirationTime 2014-05-24T19: 22: 39Z Status active StatusMessage Pending InstanceID i-2e21dc6e Diskimage DiskImageFormat VMDKs DiskImageSize 6436109312 VolumeSi ze 30 AvailabilityZone eu-west-1c ApproximateBytesConverte d 0 Status active StatusMessage Pending: Downloaded 0 TaskType IMPORTINSTANCE TaskId import-i-ffx1u0r0 ExpirationTime 2014-05-24T19: 24: 04Z Status active StatusMessage Pendin g InstanceID i-0321dc43 Diskimage DiskImageFormat VMDKs DiskImageSize 6436109312 VolumeSi ze 30 AvailabilityZone eu-west-1c ApproximateBytesConverte d 0 Status active StatusMessage Pending: Downloaded 0 TaskType ImportInstance TaskId import-i-fg2jd969 ExpirationTime 2014-05-24T19: 27: 35Z Status completed InstanceID I-5021dc10 DISKIMAGE DiskImageFormat VMDK DiskImageSize 6436109312 VolumeId vol-abba0bac VolumeSize 30 AvailabilityZone eu-west- 1c ApproximateBytesConverted 6436102752 Status completed

We can see that we have many tasks with active status and status message is Pending (This means that work is on-hook)

Now knowing which of these migration tasks we want to eliminate use the command ec2-cancel-conversion-task or the short name ec2cct TaskId and name together with the region.

The command is used as follows:

ec2cct -region <region> TaskID


Let's see the outcome.


C: \ AWS \ CLI \ bin>-region ec2cct eu-west-1 import-i-fflbhk06

CONVERSION-TASK import-i-fflbhk06


If we check the status of migration with ec2dct -region eu-west-1 we can see that the state instead of active and puts canceling canceled after a while.

We do the same procedure with all pending tasks and migration and can eliminate the EC2 quietly outstanding instances.

I hope you have been useful article.

Greetings and until next time.

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Posted by Amazon AWS | No Comments »

Migrating virtual server to the Cloud with Amazon AWS

Posted by Xaus Xavier Nadal 17th on May 2014

Conduct a converter of a virtual machine from physical to virtual or virtual to virtual is a breeze with VMware Converter, as we have talked about it in other articlesBut now that many of you are making the move to the Cloud we show you other techniques to migrate virtual server to the Cloud and vice versa, from the cloud to your on premise environments.

But not all operating systems can be migrated and meet some prerequisites that we will see in the following link:

In this post we will show you how to migrate a server in a virtual infrastructure (On premise) that is in our infrastructure to a cloud environment (the cloud that we have chosen is Amazon as we quite like and some had to go). When we have much experience on Amazon see other options such as Azure or re-environments on premise and surely we will stay with Amazon, but it will be time and money will tell you definitively what environment is that we pay for and maintain (What to think of everything, air conditioners, cpd, painting, cleaning, light ...), the server will be migrated into a virtual environment based on VMware but also served with Citrix or Microsoft Hyper-V.

The benefits they currently have cloud environments like Amazon are paid for months and use, if you have a server off not pay for it (Well, .. more or less (keep in mind the Elastic IP, disks EBS, snapshots in S3, VPC, ....) Now I will explain later how these products work or while skipping asking with comments or via e you'll solved your doubts. Another of the benefits of these systems Cloud is that they are highly scalable, if we need more resources only expand the server is already in minutes have more CPU, more RAM, more disk even SSDs, or even more IOPS on a specific disk, if for example we want to set up a system of video streaming or game Mobile (app) and do not know how many users are going to have in the system and can not preveerlo may use methods like Auto-Scaling to start instances EC2 (Servers) of the same features that make Load Balancing between them and have unlimited resources to provide our customers the desired service, but best of all is that when customers stop using the application, game, or stop viewing the soccer match streaming these servers will go by turning off / removing and cost of the product will be only used.

But enough of both text and what we've really come to do.

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Posted by Amazon AWS | 1 Comment »

As you stop and start instance on Amazon AWS EC2

Posted by Xaus Xavier Nadal 14th on January 2014

We are going to show how extinguish a EC2 instance automatically to achieve cost savings and how to start instance Amazon Amazon EC2 from Windows command line. Thus we get cost free evening servers that are not being used.

The command to extinguish a EC2 instance is as follows:

ec2-stop-instances <Instance_ID> -region <Region>

The command to light a EC2 instance is as follows:

ec2-start-instances <Instance_ID> -region <Region>

But we need to make some small settings before, so we need to have a CLI EC2.

1.- Download client EC2:

Now let's define the environment variable JAVA_HOME with the following process:

Click on Home -> Right click on computer and click on properties

Click on Advanced System Settings.

Click on Environment Variables

In section System Variables click on News.

Variable name: JAVA_HOME

Variable value: C: \ Program Files \ Java \ jre7

Click on To accept.


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Posted by Amazon AWS | 2 Comments »