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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21 views

AWS ELB session stickiness issue when multiple AWSELB cookies exist in a single request

I have two web apps - App-A & App-B - running in 2 EC2 instances (both web apps are running in both instances) fronted with an AWS ELB. The session stickiness is enabled using 'Application ...
2
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135 views

Ubuntu 14.04 / Apache 2.4 causes kernel fault on Amazon EC2 medium instance

Got a disturbing crash while performing 'apachectl stop'. General system: $ uname -a Linux www.example.com 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ...
2
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0answers
42 views

Is it possible to add computers in a particular IP range to a particular Active Directory group?

I'm using AWS and have a VPC which is connected to the local network via a VPN. I can launch EC2 instances, put them in various subnets in various AZ's and connect to them via internal IP. I can also ...
2
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0answers
58 views

EC2 Ubuntu SSH Stops Working

I use about 15 EC2 instances to run some services. They are hosted on EC2 and run Ubuntu. Every once in a while the SSH stops working and the "Reachability Status" in the EC2 console shows that it is ...
2
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255 views

How can I use huge pages and libhugetlbfs on a Debian EC2 PVM instance?

On my local machine (i7 9200) running Debian Wheezy amd64 I can get some significant speedups on some "big data"/HPC type stuff by: Following the instructions here to reserve some RAM for huge pages ...
2
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130 views

Amazon EC2 Instance running Ubuntu doesn't connect with non ec2-user

I have an Amazon EC2 instance running Ubuntu 10.04. I created my new user with sudo useradd -d /some/path new_user. Using the new_user, I created a new rsa key, using ssh-keygen -t rsa in the ...
2
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254 views

Phing SSH connection to Amazon EC2 fails to authenticate

I'm trying to connect to Amazon EC2 with phing. This is my script. <ssh username="ec2-user" pubkeyfile="C:\Users\asd\Downloads\aws-nr1.public" ...
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1k views

Connecting to IPSec/L2tp with OpenSwan/xl2tpd from Windows7 to Amazon EC2

I am trying to connect from my Windows7 at home to my OpenSwan/xl2tpd setup on an Ubuntu EC2 instance at Amazon. It is a connection being NATed from both the client and server ends. I was following ...
2
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508 views

Connectivity issues with dual NIC machine in EC2

I'm trying to get some servers set up in EC2 in a Virtual Private Cloud. To do this, I have two subnets: 10.0.42.0/24 - Public subnet 10.0.83.0/24 - Private subnet To bridge these two, I have a ...
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386 views

Resque(Redis) On EC2 Micro Replciated to 3 availability zones

I'm going to build a failover setup for my resque jobs system wich uses Redis as a queue. The idea is to put 3 redises in different availability zones on micro instances and replicate them. Also would ...
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2k views

EC2 Linux AMI with ffmpeg (no yasm?)

I'm running a Basic 64-bit Amazon Linux AMI 2011.09 (AMI Id: ami-953b06e1) and I want to install ffmpeg into it so I can use it convert video. These are the commands I run after firing up a new ...
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610 views

Unable to SSH into EC2 instance

I've read through the existing answers to this topic, but I still can't seem to connect. I've created an AWS key and saved to my ~/.ssh folder. The command: ssh -i ~/.ssh/jdrake.pem ...
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27 views

Can I use ZFS to replicate (fast) EC2 instance store to (slow) EBS store?

I love the idea of using SSD EBS instance stores as L2ARC and ZIL for a zpool backed by EBS. Going further (and into more dangerous territory), could I instead create a zpool mirror with the 2 ...
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28 views

How to determine total size of Amazon EC2 snapshots?

According to this answer, it is not possible to determine the size of an individual Amazon EC2 snapshot, but they do provide "the total usage and cost numbers for all snapshots in the account." Where ...
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18 views

Issue while setting up a DSN while creating a linked server

I am trying to set up a linked server to my sql from sql server. However I am encountering problems while setting up the dsn. Reffering this link for help. My MySQL database resides on Amazon ec2 ...
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199 views

How to install latest Tomcat7 using yum on AWS EC2?

I'd like to install the latest (7.0.53) Tomcat on an AWS EC2 instance running Amazon Linux. If I were to do "sudo yum install tomcat7 -y", I would only get version 7.0.47, as shown by " yum list ...
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24 views

RabbitMQ server randomly, mysteriously stopping

I installed RabbitMQ on my EC2 box following the RPM install instructions from their website. My OS is CentOS. Every now and then, the rabbitMQ server just stops running, nothing shows up in the ...
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54 views

How do I add a NAT instance that was created by the VPC setup wizard to an OpsWorks layer?

I'm using a VPC with public/private subnets and a NAT instance created by the VPC setup wizard. I'd like to make a few tweaks to the NAT instances via OpsWorks (mostly logging and changes to iptables ...
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0answers
70 views

Elasticsearch on EC2, webserver on Heroku // EC2 ports only accessible from Heroku

I have an instance of Elasticsearch facing the internet on an EC2. On the other hand I have my webservice as a Heroku app. I want to secure the Elasticsearch instance and allow inbound traffic only ...
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71 views

Amazon ec2 - Error occurred during initialization of VM Could not reserve enough space for object heap

I don't have any experience of working with servers, so please explain your answer in detail or provide a link to support your answer. I want to restart server and executing command for that gives ...
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210 views

nginx service won't start after reboot + won't give output for service nginx status or start

A few weeks ago I configured an ec2 ubuntu server for my rails app. everything worked great. the database is on RDS and I use nginx and passenger for the rails app. anyway everything worked great ...
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104 views

Convert an HVM ec2 instance into something that can be run on a PV instance

I have a linux VM running on an esx-i server at home, and I would like to import the vmdk to aws using the ec2-import-instance command. However I really don't need this to be any larger of an ...
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103 views

How to downgrade OpenSSL on Amazon EC2

I'm using a version of the Amazon Linux AMI (v 2013.03) that comes with OpenSSL 1.0.1 installed as described here: http://aws.amazon.com/amazon-linux-ami/2013.03-release-notes/. I have an application ...
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94 views

Amazon EC2 IIS 8 SSL FTP results in 534: Local policy on server does not allow TLS secure connections

I have an Amazon EC2 Windows 2012 server. It is configured with a dozen sites, one of which is an FTP site that requires SSL. Currently it's set with: Basic Authorization Specific group for ...
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66 views

EC2 - editing .bashrc causes terminal to hang and checks to fail

I've been testing this for the past few hours with no luck. When launching an Ubuntu 12.04 EC2 micro instance, I SSH to it, create a new user and continue with installing Ruby version manger under ...
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80 views

Amazon EC2 instance of Windows Server 2012- unable to connect to simple webserver

Using Amazon EC2 I have successfully launched a Windows Server 2012 instance and configured it to run a Tomcat webserver. From within the VPS itself, I know the webserver is working because I see the ...
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58 views

AWS: how should I configure my vhosts to access different directories depending on the address I'm coming from?

I've just set up route 53 on AWS to link my server (ubuntu) to a godaddy domain name. I used to be able to access my /var/www/mmf folder from the elastic IP address given by aws (54.214.246.243/mmf) ...
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0answers
111 views

nginx and php-fpm performance cpu bound

in peak hours our server is cpu bound. we are hitting 100% cpu. using php5-fpm and nginx on a large ec2 instance. to serve around 50 million requests per day. we are using this server to serve JSON ...
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381 views

EC2 DNS not resolving hostname to internal IP

I already posted this on the AWS forums without success (https://forums.aws.amazon.com/message.jspa?messageID=502441). I'm wondering if I'll be more lucky here. We have an internal DNS setup that ...
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0answers
78 views

AWS Dev-to-Production Build Process

I'm a developer, so not nearly as experienced as I would like to be with server administration. Essentially, I am trying to figure out how to create a base image (AMI) that can be used in development, ...
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169 views

How to make Statsd talk to Ganglia on EC2 (localhost)

As per topic, Im just trying to make this simple setup work. The services are running fine, but as far as I can tell statsd doesn't send anything over to ganglia. Ganglia is working fine I guess since ...
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0answers
250 views

Apache bloodhound installation, AWS host not serving site

Following the installation instructions here I went through the entire process on an AWS instance. Everything seems to be setup correctly, I can even run BH off the development server using: tracd ...
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0answers
52 views

OpenSSH server fails to start after resizing EC2 instance

I had a medium EC2 instance which I changed to a small instance. After doing so I could no longer SSH in to the instance. Looking at the console output I see: * Starting OpenSSH server[74G[ OK ] * ...
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142 views

How do you create HVM AMI images on EC2?

How do you create HVM AMI images on EC2? I've searched a bit, it seems I am only able to create a paravirtualization AMI image, which means it cannot be applied on the HVM-based instances. FYI, I'm ...
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0answers
117 views

Why does Process Explorer cause highly targeted failure of some applications / basic UI functions in a high-power EC2 Windows instance?

Update: I have determined that Process Explorer itself - the program I am using to debug a performance issue - seems to be the cause of the issue. See note, with updated question, at end. I am ...
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0answers
48 views

Amazon EC2 pem file stopped working suddenly

I was connecting to Amazon EC2 through SSH and it was working well. But all of a sudden, it stopped working. I am not able to connect anymore with the same key file. What can go wrong ? Here's ...
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197 views

How can I whitelist oubound-from-private-subnet traffic to S3 on the NAT instance of an EC2 VPC?

I'm researching privacy-compliant high-security deployment options for AWS VPC. I'm looking for a method of tightening outbound traffic from the private subnets at the NAT instance. For example, how ...
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0answers
206 views

Hostname via Cloud-Init on CentOS running on EC2 do not work

I setup the cloud-config on the user-data for a CentOS 6.4's EC2 instance, and it looks like do not apply. #cloud-config manage_etc_hosts: true preserve_hostname: false hostname: ...
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0answers
85 views

Apache not responding in amazon ec2

Well this might sound awkward but I facing terrible issue with my Amazon EC2 instance one of the finding I see is that apache is not responding on port 80 which is weird because I can't even find the ...
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0answers
48 views

Programmatically add EC2 execute nodes to Grid Engine cluster

I am running Grid Scheduler (fka Sun Grid Engine) on Amazon Web Services. Master node is running all the time, but I want to programmatically add nodes to the cluster (also remove - but remove is not ...
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0answers
128 views

Is it possible to force Re-creation of EC2::Instance or RDS::DBInstance in amazon cloudformation?

It's possible to force the re-creation of a EC2 or RDS instance using cloudformation stacks? My stack goes stuck in a point where simply destroying and creating the resource will fix it, instead of ...
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0answers
126 views

HPC / EC2 - optimizing NFS for relialibility

In AWS-EC2, I've set-up a cluster of linux virtual machines made of an NFS fileserver and many clients. If the number of clients is above ~20, under heavy I/O, I am experiencing loss of file ...
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885 views

proxy:error AH00898: Error during SSL Handshake with remote server

I have a server that acts as a front-end for a cPanel mailserver in a network. The apache proxy on the front-end server ran for 152 days without fault then suddenly I now get 500/502 errors when using ...
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0answers
45 views

maintaining session in elastic Bean

As the number of instances changes from time to time in EBS amazon. If an application is built in PHP how the session will be mantained among several instances? How can we make sure not to delete the ...
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0answers
241 views

EC2Connection.run_instance fails

I am trying to spin up an ec2 instance using boto. But I run into the problem e.run_instances(AMI_ID, key_name='lappy', instance_type='m1.small', security_group_ids=['sg-4bf11724']) Where e is ...
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0answers
150 views

Windows Server 2008 - Smart Card service is down

I'm getting this weird error when trying to work with a SmartCard on an ec2 machine running Windows Server 2008. I'm using AnywhereUSB to connect my physical smart-card reader to the remote machine. ...
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0answers
317 views

Kernel panic - not syncing: VFS: Unable to mount root

I uploaded a centos 6.2 VMDK to s3 and then converted it to volume using ec2 import volume. Then i took the snapshot of the volume and deleted it.Now I am trying to create a instance from the snapshot ...
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0answers
147 views

AD/DNS/DHCP domain controller in Amazon EC2 or VPC: migrating production environment

I currently have a co-location production environment which I want to migrate to AWS. Our infrastructure relies heavily on Active Directory for access to several platforms hosted within the ...
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0answers
104 views

AWS VPN issue routing to 2nd ip block

I've just setup a VPN link between our local network and an Amazon VPC. Our local network has two ip blocks of interest: 192.168.0.0/16 - block local-A 10.1.1.0/24 - block local-B The AWS VPC ...
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16 views

Setting initial passwords or taking user input on Amazon Marketplace

We're looking to put an image on AWS Marketplace. The image is to include a password-based web user interface. What is the correct way to set that password? Some options come to mind: Set the ...