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

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Unable to traceroute on Amazon EC2 Ubuntu

I have setup a brandnew Ubuntu 14.04 instance, with a public IP, with a security groups that allows all inbound and outbound traffic using all protocols on all ports from/to any IP. I have installed ...
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48 views

Django/Tastypie: RDS is damn slow compared to EC2-MySQL

Initially my setup was: EC2 (Apache -> Django -> Tastypie) -> MySQL on EC2 itself. One of our API (Tastypie) does almost 80 SQL SELECT queries to fetch related resources and attributes. For local ...
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161 views

AWS EC2 instance hyperthreading

I am currently doing some performance testing of web-apps that we have moved to AWS. One of the things we have noticed is that vCPU performance doesn't seem to be nearly as good as we'd expected. In ...
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46 views

Port not opening even after adding security group rules on Amazon EC2 instance

I have an Amazon EC2 Linux instance. I recently installed SmartFoxServer in my instance. For that I needed to open 9933 port. So I just created inbound rules on Amazon EC2 Manager console website. My ...
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44 views

How can I use AWS placement groups with ironfan?

I would like to use AWS placement groups in order to decrease latency between my front-end server and back-end servers in a particular availability zone. We use the Chef orchestration layer Ironfan, ...
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27 views

Sharing between EC2 Instances not working

I want trying to setup a render farm in AWS where I created all my instances using my 'Windows 2008 Base' based AMI. I will have one manager instance which is attached to EBS drive (D drive) and this ...
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27 views

not able to map domain name 53 to EC2 instance

I am facing the issue with assigning the new domain name I brought in route 53. I followed the instructions in http://coenraets.org/blog/2012/01/setting-up-wordpress-on-amazon-ec2-in-5-minutes/ and ...
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116 views

How to deploy in amazon ec2 through bitbucket

I have a django project and have my repository in bitbucket and locally (windows 7). Now I want to deploy the changes to amazon ec2 instance (ubuntu 14.04) by doing git push and git pull. I did git ...
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41 views

EC2 Ubuntu 12.04 refuses do-release-upgrade

I'm running Ubuntu 12.04 on EC2 and I want to upgrade to 14.04. do-release-upgrade returns that there are no upgrades. do-release-upgrade -d begins to work and then halts stating: Calculating the ...
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65 views

Windows VPN Server on Amazon EC2 Instance

we are small software company. Our web/db servers were in different networks. Recently we decided to create small network on Amazon EC2 and move all those servers to EC2. I have created several ...
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45 views

EC2 and Mailgun DNS setting

I'll preface this by saying I'm very much a newbie when it comes to servers, so please bear with me. I'm trying to configure an Amazon EC2 instance to allow me to send e-mail through Mailgun but I ...
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26 views

selinux-policy update prevents ssh into ec2. Now what?

I created a new EC2 instance using the official CentOS 7 (x86_64) HVM image. I ran: yum upgrade At: Running transaction Warning: RPMDB altered outside of yum. Updating : ...
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84 views

Amazon Web Services VPC ClassicLink feature in Cloudformation?

Does anybody know how to configure ClassicLink in a VPC in cloudformation? I'd rather not have to manually enable this every time I update a stack. The cloudformation documentation always seems to lag ...
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28 views

How can I prevent the 'Your PC ran into some trouble' popup after a crash/BSOD?

I'm using a Windows Server 2012 instance on the Amazon Cloud, and from time to time, it has a bluescreen of death/crash. It automatically restarts, but this message pops up everytime this crash ...
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45 views

Elastic IP on 2nd Network Interface not accessible

Server is Apache2 on Ubuntu 14.04 I have added a network interface attached it to an instance. On this interface (eth1) I have attached an elastic ip. I am able to access the box via amazon's ...
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67 views

Creating a Remote Desktop Session from within an EC2 server, not to it

Ok, I'm having problems answering this because I can't figure out how to word it. Most questions about "remote desktop" and "ec2" focus on remoting into an ec2 instance, which isn't necessarily what I ...
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168 views

Amazon VPC NAT performance problems

I have a set of servers inside an Amazon VPC, whose job is to get image files from S3 and process them. The S3 downloads would frequently stall, sometimes for over 2 minutes, but all would eventually ...
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245 views

Mcrypt PHP extension fail on PHP 5.5 Amazon Linux

I'm installing laravel framework on my Amazon Linux Server, But once i compose and Laravel finish installing, laravel ask for Mcrypt PHP extension. then when i try to use command line to install ...
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38 views

Software RAID0 on ephemeral storage for Server 2008 on boot

I have a c3.large instance which I would like to run the two ephemeral drives in a striped raid configuration. I am able to do this via command line and the disk management msc, but I have not been ...
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155 views

apache is utilizing 100% of cpu usage on m3.xlarge ec2 instance running centos - how to tune apache?

I have recently migrated to amazon. I have m3.xlarge maching with 4 cpu cores and 15 GB RAM . But my site goes down suddenly due to 100 % cpu utilization. top command says apache is utilizing almost ...
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20 views

find running ec2 instances and compare with tag like “linux” running instances or get mail whose running without tag. vai shell script

with help of code: Array3=ec2-describe-instances | grep INSTANCE | grep running | awk '{print $2,$5,$9,$10}' Array2=ec2-describe-tags --filter "resource-type=instance" --filter "key=linux" | awk ...
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40 views

Bootstrapping an EC2 HVM Instance Store Image

I currently have a process where I dd a disk, install CentOS onto it and upload to AWS. This works great for PV based images. I'm trying to use this same process to bootstrap HVM instances, but I'm ...
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96 views

aws stolen cpu on dedicated machine

I'm running a dedicated m3.medium EC2 instance. How is it possible that my top says: Tasks: 84 total, 1 running, 83 sleeping, 0 stopped, 0 zombie Cpu(s): 4.3%us, 1.5%sy, 0.0%ni, 90.8%id, ...
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25 views

Lost ssh-control on aws ec2 instance after Ubuntu update

During major update of Ubintu on my aws ec2 instance, system asked me if I want to disable ability to ssh under root user, as for most systems it's not used, but simplifies attacks. As by default I ...
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55 views

Bottle neck of nginx?

I'm using nginx as a load balancer on amazon ec2 m3.large instance. This load balancer will receive loads from a load generator and distributed them to the 3 instance with mysql database serves as ...
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44 views

Elastic IP Not Resolving to Windows Instance

I'm sure I'm just missing a step, but I can't figure out how to get server to resolve to new elastic IP address. I appreciate everyone for their help. I've been trying to figure this out for a while ...
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71 views

ASP.NET/IIS <---> Solr/Tomcat setup on EC2 - “best practice” configuration

I am an ec2 newbie and deploying an asp.net application that interfaces with Apache solr (on Tomcat). In my dev environment I am running ASP.NET and Solr/Tomcat on my windows box. I am also ...
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118 views

How can I redirect a domain name based on the source Region on Amazon EC2?

I have two web applications, one in Amazon's US-West-1 region and one in the US-East-1 region running on EC2. For the most part, they do the same thing, but they service different customers based on ...
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32 views

Creating a bootable ami from a raw device AWS

I have a raw block device or a raw file that I would like to convert to and ami or something similar. The raw file can be a variety of operating systems. Also, the file is almost always larger than ...
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62 views

iis-disabling-ssl-v3 (CVE­-2014­-356)causing ec2 to Rds connection failure

To disable ssl v3 on my web server (m1.small EC2, i-1aafee15) running windows server 2012 r2, I added registry keys: SSL 3.0->Server->Enabled (0) SSL 3.0 ->Client->DisabledByDefault (1) ...
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69 views

cloud-init - migrating EC2 instance between subnets without reconfiguring

We need to move a handful of Amazon Linux EC2 instances between subnets within our region. All I want to change during the move is the IP address. The suggested approach was to Shut down the ...
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36 views

EC2 instance missing or got renamed?

One of our instances is missing. Or it could have been renamed by someone. I see a similar instance (not willing to turn it on as it might affect some other service). I want to know if there is a way ...
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160 views

CORS problems with DNS forwarding to AWS EC2 instance Atlassian Jira Tomcat

I have Atlassian Jira set up in a Tomcat server on my ubuntu AWS EC2 instance with a godaddy domain forwarded to an elastic IP on the EC2 instance. Looking at the console in Chrome, the JIRA ...
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377 views

Ubuntu Server Upgrade 10.04 to 14.04 upgrade failed to boot instance AWS

We were performing a dry run test on upgrading our Ubuntu servers from 10.04 to 14.04. These serves are hosted in Amazon EC2. As per the standard procedure mentioned we have upgraded in the below ...
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63 views

Calculate AWS Data Transfer for existing on-premise server

We are looking to move our internally hosted servers to AWS. One thing I cannot seem to work out is how much data our servers are going to transmit back to our office. Anyone know of a good way to ...
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57 views

Mounted volume is not showing in my EC2 elastic block store list

I have recently launched an m3.xlarge instance on amazon EC2 which is running Ubuntu 14.04. It came with three volumes. One 8gb volume which holds the OS data, and two 40GB data drives. When I ssh ...
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84 views

Diagnosing Random Internal Server Errors That Leave Clean Logs

I have a Django site running on an Amazon EC2 Ubuntu instance, and I've been getting random Internal Server Errors that I can't get to the bottom of. I'm using Apache 2.4.10 to serve pages. I also ...
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91 views

Amazon EC2 not responding on port 80 and mysqld will not start

An EC2 instance running Apache 2.2.5 on CentOS 6.4 appeared to be fine up until September 29. That day at 7:49 the Value in CloudWatch was 42, at 7:59 it was in the low 100,000's, the last Value ...
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75 views

Is the IP based filtering in Amazon EC2 enough to ensure security?

I am hosting a webserver using Amazon EC2 and want it to be accessible only from a particular IP. I have set up my security groups to allow connections from only that IP. ...
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35 views

Linux pt_BR Locale - Bad Translations

I'm using Amazon Linux AMI 2014.09 (up-to-date) to host my PHP application, that uses locales for internationalization (usually it's pt_BR). On the production server the pt_BR translations is not ...
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90 views

Mail not getting to users on Google when MX records specified in Amazon Route 53

I configured the MX on my Amazon AWS Route53 and I was told that some of the users don't get any emails with this domain. When I send myself an email everything works fine now, and I doubt that ...
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270 views

aws cli tool set up - unable to connect ec2 and retrieve instance information

I am trying to use aws configure to set up the cli tool aws configure --profile work AWS Access Key ID [None]: ABCD AWS Secret Access Key [None]: 123456 Default region name [None]: Default output ...
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979 views

Apache Server 2.4 on EC2 “caught SIGTERM shutting down ”

I'm using amazon linux on an m3.large instance on EC2. I had these logs before my apache server was shut down: [Sun Sep 28 18:54:31.679261 2014] [cgi:error] [pid 32422] [client 67.211.230.58:58937] ...
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142 views

custom ami creation and sysprep

I am working through steps to create a custom ami, so far take a base one and install all software needed. shutdown machine with sysprep. create an ami. create instances from it I am wondering how ...
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104 views

AWS Instance Suddenly Not Available in Browser - SSH and ping work

I am very new AWS and sys admin so bear with me... I noticed my website was suddenly down today and have been working to sniff out the issue. No site files were changed as far as I am aware. Here is ...
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148 views

EC2 Haproxy stops taking requests

I am using haproxy with Apache to keep alive an EC2 server. Sometimes haproxy stops taking new requests. If I reload haproxy it starts working normally. I have disabled iptables and increased open ...
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144 views

Configuring NGINX with SSL and Node.js on CENTOS 6 in EC2

I'm trying to deploy a Node.js web-app on a Centos EC2 instance with an elastic IP. The SSL certificate is already setup and properly configured. I would like to allow only https connection to my app, ...
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211 views

systemd-journald: Received request to flush runtime journal from PID 1

I'm using RHEL7 on Amazon EC2 and I'm experiencing issue while booting it up. last few entries from log are: [ 93.000775] systemd-journald[413]: Received request to flush runtime journal from PID ...
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78 views

amazon ec2 ftp RETR hangs

The problem is with an Amazon ec2 instance "Red Hat Enterprise Linux Server 7.0 (Maipo)" (kernel 3.10.0-123.6.3.el7.x86_64) When attempting to RETR a remote file the FTP client hangs indefinitely. I ...
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38 views

EC2 Create new Linux user(s) with their OWN Key Pairs?

In EC2, i spinned a CentOS v6.5 instance, and i got a Key Pair as well (of course). But the problem is, i hoped it would be like as usual before that it would creates the ec2-user user, so that i can ...