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Questions tagged [amazon-ec2]

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

The Amazon Elastic Compute Cloud (EC2) service is part of the Amazon Web Services cloud platform.

EC2 offers computing power in the cloud, on demand. The 'Elastic' part of the name refers to the ability to scale both up and down, as needed.

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How can I prevent a DDOS attack on Amazon EC2?

One of the servers I use is hosted on the Amazon EC2 cloud. Every few months we appear to have a DDOS attack on this sever. This slows the server down incredibly. After around 30 minutes, and sometimes a reboot later, everything is back to…
cwd
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Why can't I connect to Amazon RDS after setting it up?

So, I just created the Amazon RDS account. And I started an instance of database. The "endpoint" is: abcw3n-prod.cbmbuiv8aakk.us-east-1.rds.amazonaws.com Great! Now I try to connect to it from one of my other EC2 instances. mysql -uUSER -pPASS…
Alex
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Why can't I reach my Amazon EC2 instance via its Elastic IP address?

The server works fine via the Amazon assigned DNS entry, but I cannot reach it (using a browser) via the Elastic IP address Amazon assigned the box. Ping does not work either. I am trying to confirm it is reachable before I add the IP address to my…
Guido Anselmi
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EC2: is an instance's public DNS stable? Can I rely on it not changing?

I've launched my first instance, and am using it as a web server. I see that it has a public DNS (a public URL), e.g.: ec2-123-45-6-789.compute-1.amazonaws.com I can successfully go to this server in my browser, hit it via cURL, etc. I want to use…
Aseem Kishore
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What's best practice for communication between Amazon EC2 instances?

I've been setting up Amazon EC2 instances for an upcoming project. They are all micro instances, running Ubuntu Server 64bit. Here's what I've setup so far: Web Server -- Apache Database Server -- MySQL Development Server -- Apache & MySQL File…
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Safe to Use an Amazon EBS Volume While Snapshot in Progress?

Is it safe to use an EBS volumne while a snapshot is being created? I've currently got a 100Gb EBS volume mounted. I am in the process of snapshotting it. Goodness it's slow!! It's going to end up taking more than 45 minutes to snapshot. My…
Justin Noel
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Bandwidth limits for Amazon EC2

I have a micro instance on Amazon EC2 cloud. Also the instance is small and it has vary low CPU and EAM usage but it generates a lot of content, so it can be considered like a web server serving small amount of static files (not of a big size) to…
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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 don't need to run ntpd since EC2 is Xen and the…
ahanson
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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 create a new image while specifying HVM as the…
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"500 Illegal PORT command" using command-line ftp

Has anyone figured out how to ftp a file down to a EC2 AMI using ubuntu on the command line? I am able to connect to ftp.drupal.org (I'm trying to dowmload a Drupal module) and then I can't even execute a simple "ls" let alone a "get". I just get…
chuckboycejr
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How do I access the attached volume in Amazon EC2

I just attached another ebs volume to running instance. But how do I access the volume? I can't find the /dev/sda directory anywhere. Where should I look?
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"A new version of /boot/grub/menu.lst is available" when upgrading Ubuntu on an AWS server

I just tried to do a sudo do_release_upgrade on an AWS EC2 Ubuntu 13.10 server to upgrade to 14.04. All was going well until I got the following message: A new version of /boot/grub/menu.lst is available, but the version installed currently has…
Mark Amery
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Vagrant box most similar to Amazon EC2 instances

Are there any 'boxes' available to download for Vagrant that closely mirror the Linux version and packages available for Amazon EC2 instances? I am testing locally using Vagrant, currently using the Precise32 box. I am deploying my code to Amazon…
Danack
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Where does Amazon publish the range of IP addresses used for EC2 instances by region?

How can I keep updated of changes to the range of IP addresses that Amazon will use for EC2 instances. I want to add a range of IPs to my firewall settings to allow access to my 'ground based' mysql database from instances started by my autoscale…
undefined
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How to make EC2 user data script run again on startup?

After cloud-init runs a user data script on the first boot of an EC2 instance, a state file is presumably written so that cloud-init won't run the script again on subsequent reboots. There are cases where I'd like to delete this state file so that…
Mike Conigliaro
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