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11
votes
3answers
15k views

How to use Amazon Elastic IP?

I get a new elastic IP, I attach it to an instance, but it doesn't work? I can't ping the IP from my local computer either? Am I missing something here? How do I use Amazon Elastic IP? When is a new ...
10
votes
6answers
9k views

How do you automate failover on EC2?

Of the folks managing their own clusters (i.e. not using/paying for Amazon Autoscale, Rightscale, Scalr, etc.), how are you managing your instances on EC2 and handling (e.g.) failover? I'm wondering ...
7
votes
2answers
4k views

AWS - Assign an Elastic IP to a ELB

Is it possible to assign an Elastic IP to a Load Balancer?
7
votes
2answers
5k views

How do I attach an Elastic IP to an Elastic Beanstalk app?

I can give a single instance an Elastic IP. No problem. But I have an Elastic Beanstalk app. It can create and remove instances as needed. It has a load balancer. How can I get these features ...
6
votes
1answer
1k views

Possible to limit an EC2 key to just ec2-associate-address?

I have a regular EC2 instance with an elastic IP. The few times the instance has been stopped, I've just manually re-associated the IP with it via the AWS Management console. I'm now thinking about ...
5
votes
2answers
4k views

Assign multiple Elastic IPs to EC2 instance

When I try and associate a second Elastic IP to a small EC2 instance, the currently assigned Elastic IP is disassociated. Do I need to use a VPC?
5
votes
1answer
2k views

haproxy and keepalived on Amazon EC2

The new Amazon Opsworks service uses haproxy rather than Amazon's own very limited elastic load-balancer so I started investigating haproxy as a better option for load-balancing our web app servers, ...
4
votes
1answer
2k views

What is the difference between a plain Amazon ec2 instance and beanstalk?

I am a solo developer and the sites I'm deploying are very small, usually hobby sites and I have a few questions about the Amazon services. Is there a reason for me to use beanstalk or should I just ...
3
votes
2answers
3k views

ec2: assign cname to elastic ip

Couldn't find this exact same question so here it goes: I'm trying to setup a CNAME record to an elastic ip linked to a ec2-instance, but this fails. When deassociating the elastic-ip from the ...
3
votes
3answers
2k views

Elastic IP vs EC2 Public Hostname + Route53

We are evaluating to use Elastic IP on all of our ec2 instances, and we compare to the use of public EC2 hostname and Route53 (with a very short TTL to the public EC2 hostname & dynamic update DNS ...
3
votes
2answers
255 views

Amazon EC2 - need to change IP address without downtime

I'm maintaining a fairly high-profile site which is hosted on Amazon EC2, and the previous developer pointed the A record at the instance's "public IP" instead of using an "Elastic IP". As far as I ...
3
votes
2answers
1k views

Elastic IP address on EC2 instance interface without 1:1 NAT

I have a basic Amazon VPC set up with a public and private subnet. I have deployed a Vyatta router in the public subnet that does NAT for the private subnet. I have an elastic IP address assigned to ...
3
votes
1answer
938 views

EC2 and Static IP's (Elastic IP's)

I'm using an elastic IP for one of my EC2 instances. I can reach the instance via the elastic IP from external machines, but from other machines in my EC2 configuration, I can ONLY reach the machine ...
3
votes
2answers
3k views

Can't connect remotely to SQLServer Express 2008 on AWS EC2 instance using SSMS

Every time I try and connect to a remote SQLServer Express instance on my AWS server I get a network or instance specific error. What I have tried so far: I ensured that the Security Group applied ...
3
votes
2answers
2k views

chef assign elastic ip to instance

I am using a custom bash script to spin up/down EC2 instances as needed. The script creates the instance similar to: knife ec2 server create --config .chef/knife.rb with a few other parameters. It ...
3
votes
2answers
251 views

Security group for a changing aws instance via external ip address

I have an issue I am sure other people have come across and I am trying to find the best solution. It may be a bit long winded so please bare with me. PLEASE NOTE: port 22 is just an example port ...
3
votes
3answers
2k views

HTTP not working EC2 instance with own domain name

I have this problem I've already posted on the Amazon AWS forum. Unfortunately I haven't got a clear answer I and I was hoping you guys could help. Here's the link: ...
2
votes
3answers
2k views

What is the best practise for assigning an EC2 EIP after starting an instance?

I would like to auto-assign an EIP to an instance when it is started. I know I can write a script to stop/start the instance and assign the EIP I want using the EC2 tools, but that depends on me ...
2
votes
1answer
330 views

Amazon EC2 - Provides a dedicated IP?

I'm thinking of using Elastic Beanstalk (which uses EC2). Will I receive a dedicated IP address? Is an Elastic IP a dedicated IP? I do not want to share an IP with other people.
2
votes
4answers
2k views

Zero-downtime availability in a web-serving frontend on EC2?

We have a web application with low load but high availability requirements. It consists of a single front-end load balancer and a couple back-end servers. The load balancer is there primarily for ...
2
votes
2answers
493 views

Are EC2 public DNS names associated with Elastic IPs stable?

When I spin up a machine in us-west-2 and give it an elastic IP, it gets a public DNS hostname like ec2-XXX-XXX-XXX-XXX.us-west-2.compute.amazonaws.com When I spin up a machine in us-east-1 and ...
2
votes
2answers
1k views

amazon ec2 elastic ip. do I need one for each website I host?

I have a couple of sites that I want to move to Amazon EC2. All the sites uses ssl so it needs to have a dedicated ip address to each one. My question is: Even if I host all the sites in the same ...
2
votes
1answer
860 views

Is my hosting company using Amazon EC2?

I have a few clients who I host websites for. Right now I am using a web hosting reseller package to do this, but have been considering moving to Amazon EC2. The only problem is the clients need ...
2
votes
1answer
3k views

AWS service to setup port forwarding from Elastic IP to EC2 instances

Is there an AWS service (rather than creating an instance, and doing something via iptables?) that will allow me to use the API to set up port forwarding from a single Elastic IP address, onto ...
2
votes
1answer
3k views

Can i change the default AWS EC2 Public DNS?

I'm using Route 53 and created A record to the Elastic IP that associated with an instance. In Security Group, i activated the "All ICMP" and make it accessible from anywhere (0.0.0.0/0) so i can ...
2
votes
2answers
2k views

How to set IP address of Amazon EC2 instance to its Elastic IP?

I have an Amazon EC2 instance running and I am installing a program on it that needs to know what the machine's IP address is. Can I set the Elastic IP address to the IP address within the EC2 ...
2
votes
1answer
442 views

Need an interface for an Elastic IP (DRBD & EC2)

We are trying to mirror a volumes over a geographical zone using DRBD (and Ubuntu 11.10). We are using elastic IP's - however there is no local interface for Elastic IP's - only an interface for a ...
2
votes
1answer
320 views

Perisistent EC2 IP association even after instance stop/start

I have a single EC2 instance and a single Elastic IP. After the instance is stoped and then re-started, the association between the instance and the IP is lost and I have to manually re-associate. ...
1
vote
2answers
351 views

How do I persist a hostname or IP to my Amazon EC2 Instance?

Suppose I spin up a machine in EC2. Every time I stop/start the machine the following things change (reboots are safe--they don't cause these to change): public IP address public DNS record private ...
1
vote
2answers
2k views

Providing a static IP for resources behind AWS Elastic Load Balancer (ELB)

I need a static IP address that handles SSL traffic from a known source (a partner). The reason the IP needs to be static is that the partner requires this in order to maintain the PCI compliance. ...
1
vote
1answer
132 views

No public IP after stop/start Amzon EC2 intance

I have setup an AWS EC2 instance with a Elastic IP. Static IP and Elastic IP both works fine (shows default NGINX page). However when I STOP the instance and START back up, there is only a domain ...
1
vote
1answer
248 views

Amazon EC2 Ubuntu instance and getting the Elastic IPs auto, once turned on

Every time I reboot my Ubuntu based EC2 instances, they do not automatically get the IP so I have to associate them manually from the admin panel. Each instance should have a single IP assigned. Is ...
1
vote
1answer
690 views

Amazon EC2 - Adding a Elastic IP does not show up in IIS

I have created a Windows Server 2012 EC2 instance and I have bound an Elastic IP address to the server. The problem is, the IP address isn't showing up in IIS 8 and I can't seem to get web sites to ...
1
vote
1answer
579 views

Failed to bring up eth1:1 when using secondary private IP on secondary network interface on VPC instance

I have created a VPC ec2 instance (t1.micro), in which I have two network interfaces, the primary eth0 and additional eth1. I was able to bring up the eth1 by editing the /etc/network/inteface auto ...
1
vote
1answer
3k views

Static IP address for outgoing traffic from AWS autoscaling group

I'm going to have a number of EC2 instances in an Elastic Beanstalk autoscaling group in a default subnet in a VPC. The app on these EC2 instances needs to connect to a third party service who uses an ...
1
vote
3answers
531 views

Elastic IP + EC2 newb: trying to access my server publicy

I have created an elastic ip and associated it to my server. The ip is: 54.201.18.251 If I try and ping this IP I get: PING 54.201.18.251 (54.201.18.251): 56 data bytes Request timeout for icmp_seq ...
1
vote
1answer
327 views

EC2 Multiple website on one instance, load balance

I have a question. My instance is currently using LAMP STACK by Bitnami, the first site is LAMP, the second is Magneto STACK by bitnami, My focus is on Magneto Stack. I was thinking of having the ...
1
vote
2answers
290 views

Pointing AWS EC2 elastic IP to instance in VPC

I've had an Elastic IP pointing to a classic EC2 instance for several years. I've now stared a new instance - inside a VPC - and want to use that instance for my website. Therefore I want to point my ...
1
vote
1answer
366 views

Using Route 53, how to point a domain without www to an ELB? [duplicate]

I can already CNAME the www to my ELB DNS, but how would I route the non www as well?
1
vote
0answers
143 views

VPC private ip address unable to communicate to the network interface which has an elastic ip assigned

I'm not sure if this is how VPC EC2 private addresses are supposed to work. I have two instances in VPC each are allowed to talk to each other (security group), and each instance has two network ...
0
votes
3answers
266 views

Is it safe to allot an IP address to a computer, and not running a webserver on it?

I have a few instances running on the Amazon cloud. Some are DB-servers, some are blogs and one has my webapp. The DB-servers don't have apache or any other web-servers installed. So will it be safe ...
0
votes
2answers
143 views

Why I cannot access EC2 instance public IP from inside of instance itself?

Here is an example, I have an Linux instance , say, private IP is 10.10.10.10, public IP is 54.54.54.54. Inside the instance, I could successfully ping it's private IP(10.10.10.10) and localhost. ...
0
votes
1answer
189 views

Amazon Elastic IP within VM machine

Is it possible to have the Elastic IP (attached to the interface in the AWS console) available as the interface IP withing virtualized machine - currently eth0's IP is the private IP and the routing ...
0
votes
2answers
39 views

AWS Multi ELB In One VPC

I am trying to figure out the best solution for my use case. Say I have 10 websites to host in my VPC. Each of these websites need to be behind an Elastic Load Balancer. From my understanding, each ...
0
votes
1answer
30 views

AWS Elastic IP Limitation

I am trying to figure out the best practices for hosting multiple domains within an AWS account. For example, lets say I have 20 domains to host. The Elastic IP limitation per account is 5. So I ...
0
votes
1answer
525 views

aws elasticbeanstalk with static public ip

For a new web application I am looking at AWS ElasticBeanstalk. I like its auto-balancing and auto-rolling updates' system as well as all the other scaling-related features. But.. I need a static IP ...
0
votes
2answers
296 views

Domain Name in EC2: Server End?

I'm reading this guys post at http://codingthis.com/platforms/linux/how-to-point-a-domain-to-an-amazon-ec2-virtual-server/ and I am using Yahoo for the domain. In his post he seems to point the ...
0
votes
1answer
36 views

Host entry not working with an elastic ip on aws ec2 instance

I've set up Magento web on an aws ec2 instance for development & testing. I was able to access it by putting a host entry on my local machine using the public IP. But then I changed it to an ...
0
votes
1answer
71 views

Assign a public IP address to new Amazon Instance

My Amazon Instance got terminated accidentaly. This Instance was having an IP address associated with itself so that it can be accessed from internet. Now I have created another Instance from the ...
0
votes
1answer
610 views

Max number of elastic IPs that can be attached to single instance? [closed]

How many elastic IPs (publicly visible) can be attached to single instance?