Amazon Elastic Compute Cloud (EC2) provides self-service, on-demand, pay-for-what-you-use computing infrastructure resources.

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2
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1answer
1k views

Setting up a Rails 2.3.x app on EC2 for easy scalability

I'm running a simple rails stack on a single dedicated machine. We're reaching our full capacity and have absolutely no setup for scaling, just one app on one machine. I did some research and came up ...
8
votes
1answer
2k views

Can I SSH into my Amazon EC2 server instance if I don't have .pem file from when instance was created?

I am working with some Amazon EC2 servers that are up and running, and I need to SSH into the servers. I don't have any keys that were generated when the servers were first set up (someone else did it ...
10
votes
3answers
4k views

Is it possible to have a 100% secure virtual private server?

I am curious if it is possible to have a VPS that has data on it that is not readable by the hosting provider, but is still usable on the VPS. Obviously there are some things that you could do to ...
51
votes
4answers
25k views

Why don't EC2 ubuntu images have swap?

I started a couple servers on EC2 and they don't have swap. Am I doing something wrong or is it that the machines just don't have any?
10
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9answers
32k views

Amazon EC2 - No SSH After Reboot, Connection Refused

I've replicated this two or three times, so I'm guessing there's something wrong with what I'm doing. Here are my steps: Launch new instance via EC2 Management console using: Ubuntu Server 13.10 - ...
4
votes
1answer
846 views

Cost and Trade-offs of EC2 vs Hosted VPS for a LAMP site with 1M uniques

Does anyone have first hand experience with EC2 vs Hosted VPS cost analysis and trade-offs? It's for a LAMP site with 1M monthly uniques. It would be great to hear some opinions and any analysis ...
0
votes
2answers
840 views

ec2, ping and security settings

Got a noob question about security settings on AWS ec2 instance. I've set up an instance with Tocat7 ( ami-95da17fc ) and I have a little issue. If I ssh into the instance and do ping -c 2 -p 80 ...
167
votes
15answers
451k views

Why do I get “Permission denied (publickey)” when trying to SSH from local Ubuntu to a Amazon EC2 server?

I have an instance of an application running in the cloud on Amazon EC2 instance, and I need to connect it from my local Ubuntu. It works fine on one of local ubuntu and also laptop. I got message "...
38
votes
4answers
20k views

Do I need to run ntpd in my EC2 instance?

I'm working on getting some servers running in the EC2 environment and I'm noticing some errors with ntpd trying to sync (using CentOS). I was reading on this site and the impression I get is that I ...
17
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4answers
8k views

updates in amazon-ec2 ubuntu 10.04 server

I keep getting this message when I logged into my server in ec2 via ssh think this is called MOTD 43 packages can be updated. 22 updates are security updates. but I have already done sudo apt-...
18
votes
5answers
17k views

Create an AWS HVM Linux AMI from an Existing Paravirtual Linux AMI

Is it possible to create a hardware virtual machine (HVM) AMI from an existing paravirtual (PV) AMI. My initially thought was to start a new PV instance and use the ec2-create-image command to ...
9
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4answers
4k views

Use IAM to Allow User to Edit AWS / EC2 Security Groups?

I am trying to grant an IAM group the ability to edit our EC2 Security Groups, but I have been unable to get this working without granting access to everything in EC2. I have tried several versions ...
15
votes
4answers
7k views

Speeding up launch of Amazon EC2 Windows instances

I'm working on a Web service which is hosted on EC2 and needs to have a varying number of instances running, depending on load. We have the basic service up and running, but one of the things we're ...
4
votes
3answers
4k views

Can't change assigned key pair on amazon ec2 instance

I can't seem to find the option to assign a newly created key pair to an amazon ec2 instance after deleting away the original key pair. I wanted to "deny" the first key pair from access to the ...
20
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2answers
3k views

Is there a Windows equivalent of Unix 'CPU steal time'?

In order to assess performance monitoring accuracy on virtualization platforms, the CPU steal time has become an increasingly relevant metric - see EC2 monitoring: the case of stolen CPU for an ...
7
votes
6answers
5k views

Is it possible to use an EC2 RDS MySQL instance as a slave to an external master?

I have a master MySQL instance running on our local network, but I was wondering if I can get an EC2 RDS instance to replicate the master or is this locked down by amazon?
9
votes
3answers
2k views

What's the easiest way to back up EC2 instances automatically?

I'm worried I might log in one day and my fully configured instance has been removed. I would like to be able to back it up daily to S3 but frustratingly this is not a simple setting in the console. ...
4
votes
3answers
2k views

Multiple domains on Amazon AWS EC2

I am a bit confused on how I can use Amazon AWS to host multiple websites. I under stand how to host a website on there however I am only allowed up to 5 elastic ip addresses. So how would I host more ...
4
votes
4answers
3k views

root locked out of EC2

I was in the process of disabling root logins on an AWS EC2 instance. Right after setting PermitRootLogin no and restarting sshd, I closed the terminal on accident -- before setting up users with sudo ...
2
votes
2answers
1k views

Re-gaining root access to an EC2 EBS-boot image

I'm using an Alestic image which disables root SSH logins, but provides a user "ubuntu" with NOPASSWD sudo privileges. See here. In the course of trying to add a new user to the sudoers file I ...
6
votes
3answers
3k views

The site is using outdated security settings that may prevent future versions of Chrome from being able to safely access it

We're using an AWS ELB to do SSL termination and are having an issue where Chrome is displaying "https" in red with a strikethrough. It says "The site is using outdated security settings that may ...
1
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2answers
769 views

Automate Amazon EBS Snapshot creation?

Once in a while I would go to http://aws.amazon.com/console and manually right click my EBS volume and create a snapshot. This is kind of tedious and I would forget sometimes. Is it possible to ...
0
votes
1answer
446 views

Deploying a static site on AWS EC2/nginx: what am I doing wrong?

I set up a micro instance (Ubuntu, 32 bit) and assigned an elastic IP (23.23.245.104) Public DNS: ec2-23-23-245-104.compute-1.amazonaws.com I successfully ssh'ed to the machine and installed nginx. ...
40
votes
3answers
21k views

How can I check /dev/xvda1?

On login to EC2 (Ubuntu) instance, I see *** /dev/xvda1 should be checked for errors *** I can't fsck /dev/xvda1 because it is mounted, and sudo umount /dev/xvda1 fails because it is in use. lsof ...
16
votes
3answers
9k views

EC2 drive not EBS volume size

I have an EC2 instance which I created a 500GB EBS volume for. Unfortunately, the EC2 instance shows only 8GB available. I have only one drive, which is right. [root@ip-10-244-134-250 ~]# ls -la /...
16
votes
5answers
27k views

How do I Install Intermediate Certificates (in AWS)?

I have installed private key (pem encoded) and public key certificate (pem encoded) on Amazon Load Balancer. However, when I check the SSL with site test tool, I get the following error: Error ...
12
votes
2answers
34k views

How do I set the DNS server on GoDaddy with AWS? [closed]

I have a domain name on GoDaddy and I also have an Amazon Web Services account. I have an EC2 instance and I want to change the DNS nameserver on the GoDaddy control panel to AWS and I have no idea ...
7
votes
4answers
9k views

Why are Amazon EC2 Elastic IPs encouraged to be used with a CNAME rather than an “A” record?

I am setting up a server on EC2 that will be used by people that will be freaked out when they see ec2-111-111-111-111.compute-1.amazonaws.com in the URL bar. I know this would be solved by using an ...
7
votes
2answers
1k views

Production deployment to EC2 with minimal downtime

I have a simple web application deployed on a large instance with EC2. I now want to deploy the latest code to this server but I want to do this in a way which minimizes downtime and is a smooth as ...
13
votes
2answers
13k views

How to use “Instance Store Volumes” storage in Amazon EC2?

According to AWS I got 850 GB storage with the Medium EC2 server. But when i create an Amazon Linux AMI, I am unable to use the 850 GB provided. While creating it does show in Storage Device ...
12
votes
3answers
18k views

How to configure a custom NAT for use in Amazon VPC

I have an Ubuntu box I wish to use as NAT instance (among other things). I would prefer to avoid using the NAT AMIs provided by Amazon, and instead configuring NAT myself. Currently, my host has a ...
6
votes
2answers
5k views

amazon aws - regional data transfer - in/out/between EC2 Avail Zones

can anyone say what this charge item is from the account activity? $0.010 per GB - regional data transfer - in/out/between EC2 Avail Zones or when using public/elastic IP addresses or ELB i launched ...
11
votes
4answers
7k views

`sudo echo “bla” >> /etc/sysctl.conf` permission denied

Disclaimer: I'm pretty novice at sysadmin stuff. I'm trying to set up port forwarding in an AWS EC2 instance, this has to be done in the command-line because I don't want to go in and edit anything, ...
8
votes
4answers
12k views

Nginx set_real_ip_from AWS ELB load balancer address

I have a set of Nginx servers behind an Amazon ELB load balancer. I am using set_real_ip (from the HttpRealIpModule) so that I can access the originating client IP address on these servers (for ...
16
votes
4answers
11k views

What does %st mean in top?

Here is an example from my top: Cpu(s): 6.0%us, 3.0%sy, 0.0%ni, 78.7%id, 0.0%wa, 0.0%hi, 0.3%si, 12.0%st I am trying to figure out the significance of the %st field. I read that it means ...
9
votes
4answers
8k views

Is it possible to move an AWS EC2 AMI from one region to another region and if so how?

I have an AWS EC2 AMI in the EU region. I want to move it to the US region. The root device type is EBS and the OS is Linux. Is it possible to transfer the image to the US region and if so how?
5
votes
3answers
3k views

Auto-Attach EBS-volume to a New Spot Instance?

I am experimenting with EC2 spot instances, and am needing some data to be retained between terminations. Now as I understand it, when the current price goes above my max. bid, it will be ...
10
votes
2answers
7k views

Running Windows domain on Amazon EC2

It is possible to run Windows Server 2003 instances on Amazon EC2. I was wondering is it possible for one or more of these machines to be a domain controller and the other machines you run to be a ...
9
votes
1answer
8k views

Flush processes consume too much of CPU

The Server is EC2 Instance, it stands for saving files to NAS (NFS) from HTTPD. The processes like flush-0:32 consume over %90 of CPU and load average: 65.50, 64.02, 66.59. According the graph, it's ...
6
votes
1answer
6k views

Search ec2 instance by its name from aws command line tool

I have an instance named dev-server-03. Now how can I search all dev-server-* instances from command line? I am using aws cli tool.
4
votes
1answer
687 views

Is it possible to obtain a copy of Amazon Linux for use outside AWS

How difficult (if at all possible) would it be run a copy of Amazon Linux on a private physical server or hypervisor (Virtualbox/KVM) ? (I am thinking something based in a office/home) I realise it ...
4
votes
2answers
3k views

Setup Domain with Amazon EC2

I have domain from name.com and I want to add in Amazon EC2 server. I got Public DNS ec2-xxx-xx-x-xxx.compute-1.amazonaws.com Can I add A-Record in this DNS ? When I add Elastic IPs , I can't use ...
0
votes
1answer
1k views

Can someone help me figure out an efficient auto scaling configuration? [closed]

This is my first time releasing a web app. I'm going to using Django with Nginx and a couple of other scripts that have been piped. I wanted to know which auto scaling strategy I can use. Right now,...
14
votes
5answers
8k views

How to move S3 bucket to different location

We use S3 for storing millions of entries in our webapp, now we move the whole thing to EC2, EU servers, and we also want to move that S3 data to EU. But the bucket we use is in US, and there seem to ...
9
votes
1answer
6k views

AWS EC2 migration to new instance type with SSD Drives

I have MySQL running on an m1.xlarge instance with a 100GB EBS volume holding the data files. I would like to migrate to a m3.2xlarge instance and place the data files on the new 2 x 80GB SSD drives. ...
4
votes
3answers
9k views

Recover EC2 .pem file?

I just reinstalled my machine and forgot to backup my ec2 .pem file... Is there any way to download this again from amazon? I can't find it anywhere.
0
votes
2answers
800 views

Dig -x equivalent for AWS Route 53

I have an IP number associated with an AWS Elastic IP (EIP). I'd like to know, what DNS records in my Route 53 domain are associated with that A record's IP. In a traditional DNS service, I would ...
16
votes
1answer
794 views

can't type lower cased e in amazon ec2 (Amazon Linux)

After a few days of operation on my new ec2 build, the following happens: I log into SSH, everything is fine, I do my coding I return the next day, and log into SSH I cannot type a lower cased e ...
12
votes
1answer
5k views

How to determine actual size of an amazon snapshot?

Amazon EBS snapshots capture changed blocks from a baseline, so snapshots will often be much smaller than the source volume. Billing is based on the actual size, which is nice. However, I cannot find ...
11
votes
2answers
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 ...