Amazon Web Services (AWS) delivers a set of services that together form a reliable, scalable, and inexpensive computing platform "in the cloud". If you have a question about a specific web service, consider asking on its tag, e.g., amazon-ec2.

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Running crontab on AWS auto scaling group

I have the following setup: 1 server with application X, that runs a crontab once an hour. The crontab connects to the database and runs some heavy calculations and exports data to a special data file ...
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113 views

ntpdate on ec2: no server suitable for sychronization

I'm trying to turn NTP on for a handful of EC2 instances inside a VPC, starting with ntpdate, since my server is pretty far off and I don't want it to slew. I'm running into the 'no server suitable ...
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267 views

How do I update Logstash data to Redshift real-time?

I am looking for a way to build a pipeline for storing the logs data (I use the ELK stack) to AWS Redshift, for analytics. I have gone through the Output plugins for ElasticSearch, and found one for ...
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33 views

Use and modify existing Opsworks stack in CloudFormation

I want to create a stack in AWS CloudFormation that uses OpsWorks resources to create a new environment for my application. The thing is that my app needs the OpsWorks stack's id predefined, so I ...
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67 views

How to use java UDF on AWS Oracle RDS?

I am trying to use a java udf in AWS Oracle RDS. On a managed Oracle server I can do this by using something like the following: CALL dbms_java.loadjava('-user <username>/<password> /home/...
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131 views

How to set hostname with salt-cloud command

I am using salt-cloud to create new aws instances: salt-cloud -p base_ec2_micro test.mydomain.com However, the instance gets its ip as hostname. What can I do to set the fqdn as hostname? Thanks
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155 views

Node.js w/ Apache, same IP, different ports. Virtual Host config breaks normal Apache (Site on 80) access?

We have clients who don’t want to open port 3000 on their firewall and our app uses that port for Node.js. Been trying to find a way to redirect port 3000 (node.js) traffic so we can bring our site ...
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222 views

How to watch firefox/chrome running headlessly [under xvfb] on remote headless machine?

I have my selenium tests running on a jenkins server installed on a ubuntu headless machine [remote on AWS] using xvfb buffer, there are times when the tests gives false failures may be because of ...
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88 views

Unable to connect to web server hosted in private subnet of VPC via NAT hosted in public subnet

I have hosted my android/web application on a EC2 instance in the private subnet (10.0.1.0) of my VPC. This instance has apache-tomcat installed on it, but does not have a public IP. I also have a ...
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133 views

Advice on migrating RDS MySQL databases from one AWS account to another

I am currently planning a migration of AWS resources from one account to another. This includes several MySQL RDS instances. After some research it looks like a "dump and load" strategy is needed. My ...
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57 views

linking a local windows git repository to the aws linux git server

I want to create a git server on my aws linux server so that whenever I want to update my website in the public_html I dont have to manually transfer files to the server, I want to make use of git, ...
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150 views

Xen based AMI does not boot (/dev/xvda)

Trying to create an AMI Instance Store within a xen based guest (VM: CentOS 6.6, 32 bit, PV). 'ec2-bundle-vol' only accepts /dev/xvda1 as a valid block device. If device entries are modified in /etc/...
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702 views

Installing Google Chrome on Amazon Linux

I am trying to install the latest version of Google Chrome on Amazon Linux using yum. As far as I can tell Amazon Linux is based on RHEL/Centos however, it doesn't look like Google support this ...
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92 views

Domain name redirect to Elastic IP address when typed in browser Amazon EC2

I Pointed my Godaddy domain to Amazon Elastic IP Address in godaddy zone file (poitned @ to my elastic IP address) ,When I write domain name in browser ,it redirects to Elatic IP address ,how to ...
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73 views

AWS service to expose key/value pairs to EC2 instances

Is there a centralized AWS service to expose key/value pairs to EC2 instances easily? I'd prefer a way that either exposes as a https endpoint, or injects them into environment variables without ...
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386 views

How To: Dockerized MongoDB Replication on Elastic Container Service

I have a Node.js app together with a MongoDB database running on AWS ECS. The setup I've got currently is formed of 2 ELB's and 2 Instances running each a Docker container with its assigned service (...
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108 views

Elastic Beanstalk Test Environment use copy of production data

I have 3 environments using Elastic Beanstalk - Prod, Test, Dev. I want to use a copy of production database in my Test environment. It seems there's no easy way to "just use a different database". ...
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74 views

certificate does not match name aws private ip

Using AWS ec2 with a load Balancer and elastic IP. Im trying to add and SSL certificate but getting the following error. Certificate does not match name shop.domain.com Subject ip-172-31-19-115 ...
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59 views

How can I efficiently create daily write replicas of an RDS instance?

We're looking to create a replica of a postgres RDS instance that our developers can write to (not just a simple read replica that AWS can easily provide). Currently we run a script nightly that ...
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28 views

Setting up SQL server on EC2?

I would like to set up a SQL server in AWS on an EC2 server. I originally wanted to use an RDS instance however we require the bulk admin privilege for some of our operations which is not allowed in ...
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116 views

Amazon EC2 gives internal server error when posting via Python

I have a problem with python API and MY ec2 instance. When I am trying to post a json I am getting an error like 500 INTERNAL SERVER ERROR {"error_message": "Sorry, this request could not be ...
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141 views

Trouble creating ext4 filesystem when trying to mount EBS volume on AWS instance

I'm trying to mount an EBS volume on my AWS instance. Following Amazon's instructions, I get the following error when running sudo mkfs -t ext4 /dev/xvdf: Allocating group tables: done ...
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55 views

Why is New-DSComputer failing to join an ec2 instance to the directory services domain?

I have a domain xyz.com in AWS Directory Service, and I am trying to join an EC2 instance to this domain using PowerShell. I can do it manually but I am trying to automate it so that when the next ...
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475 views

How can I chain AWS IAM AssumeRole API calls?

There are a number of AWS accounts which I don't control. I've had the account owners deploy an IAM Role, TrustingSecurityAuditor, into their accounts which grants the right to assume the ...
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188 views

Error 499: Varnish is working how load balance Nginx Webservers

I created a solution to host a magento store with high traffic (> 500 user simultaneously) on AWS. Too often HTTP 499 error appears in the access.log the Varnish. When this happens users who have such ...
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199 views

CentOS 7 mount ebs thorugh systemd unit

CentOS 7 HVM community image is not mounting the drive if as recommended we do it via rc.local(since doing it via /etc/fstab entry may halt the machine and make it not reachable if any issue occurs in ...
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736 views

Change Nginx document root from /usr/share/nginx to /etc/nginx

I've tried many things, STFW, RTFM but I still have this problem. The thing is: I have a Nnginx installed in an AWS machine (other fella installed it, not me) and I MUST serve several virtual hosts (...
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58 views

Is there any way to run cloud-init on a Redhat 5 instance in AWS?

Redhat 6 includes cloud-init hooks, which means in AWS you can install cfn-init and use CloudFormation. Redhat 5 doesn't appear to have cloud-init. Is there any way to get this working?
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2k views

can't connect aws VPC private instance to internet through NAT

trying to install a LAMP stack on an aws instance in a VPC private subnet using Scenario 2 described here: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Scenario2.html I've set everything ...
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248 views

customize instance store Centos7 AMI

I am attempting to customize a base instance-store Centos7 AMI. Image I am using is: RightImage_CentOS_7.0_x64_v14.1.4_HVM - ami-d34b02e3 (instance store hvm) I start the instance, I customize it, I ...
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199 views

Amazon ELB + EC2 Header mismatch

Preamble: I have an AWS Elastic Load Balancer in front of a Single Amazon EC2 instance. I have 3 other EC2 instances sending requests via curl to the Load Balancer. Direct requests to the EC2 ip has ...
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355 views

How to change permission of users in RDS?

We have created a MySQL RDS instance on AWS called "lolbob" and while dumping our data over port 3306 using the user that was created during instance creation (also called "lolbob") it fails because ...
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108 views

Amazon IP no longer allowing MySQL connection (Error 104)

I am working on a group project that uses an Amazon EC2 server for hosting phpmyadmin. We have a PHP/MySQL website hosted on my school's server that makes database connections to amazon. Recently one ...
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232 views

Environment variables using AWS CodeDeploy

I have a web application that utilizes environment variables for some of its configuration (DB credentials, API keys, etc). I'm currently using Elastic Beanstalk for deployment and can easily set ...
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51 views

Amazon AWS IAM Policy based in time of day

The IAM service is Amazon AWS permits the creation of policies based on date, as described here: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccessPolicyLanguage_ElementDescriptions.html#...
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115 views

Connecting to a PostgresSQL Database Instance on Amazon Web Services

I've been trying to use the instructions found on amazon to set up my PostgreSQL database instance and connected it to PG Commander. After getting an initial connection error I checked to see if ...
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1k views

Error missing systemd on AWS server

I cant seem to figure out how to install systemd. I am attempting to upgrade mysql server on AWS from 5.5 to 5.6. I am getting the following error when trying to install- "Requires: systemd" Any ...
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206 views

Amazon EC2 VNC Nvidia GPU usage?

I have a GPU instance on Amazon Web Services I am using Ubuntu 14.04 LTS The console show that the drivers are loaded perfectly, see below output $nvidia-smi -q | head ==============NVSMI LOG======...
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50 views

aws instance froze, how to find out what went wrong

So we have a instance on AWS that runs CouchDB which was down and not accessible until we rebooted the box (which took a long time). The instance is back up now and I am trying to figure out what ...
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409 views

Amazon AWS connection issues

I have a strange issue with my Amazon EC2 instance. I have created the following: m3.medium instance hosted in the Amazon cloud This instance runs the following a. Apache Tomcat application server ...
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104 views

How are autoscaling group termination policies combined?

When creating an autoscaling group I can choose an ordered list of termination policies for its instances. Amazon's documentation states that You can use these policies individually, or combine ...
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60 views

Grant CloudWatch Full Access to IAM role for specific namespace

Could not find this in the documentation anywhere — let's say I want to allow an IAM role to have full CloudWatch access but only for a single namespace of my choosing. Is this possible?
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276 views

AWS: Sync WWW folder between multiple load balanced instances

I am new to AWS. I am trying to setup an EC2 web server. I got the server up and running, I made the AMI (which included the WWW folder), added the load balancer etc. I terminated the original ...
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863 views

AWS Linux yum repository can't find MongoDB packages for install

I am trying to install the latest version of MongoDB for my 32-bit AWS Linux instance. I am following these instructions from the MongoDB documentation. I have created the .repo file in the proper ...
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1k views

Can you configure AWS Console for your time zone?

We have a maintenance event coming up on our EC2 servers, and the AWS Console lists the event time in UTC-5 - which is US Eastern. Start time September 26, 2014 7:00:00 AM UTC-5 Our company is ...
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154 views

VPN load balancing between AWS regions for DataStax cluster

I am testing some DataStax Enterprise clusters in different AWS regions and working on a desirable architecture. Currently - I have one cluster with datacenters in us-east, us-west, and eu-ireland. I ...
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253 views

Allow ELB healthcheck against nginx but block proxied connections

I have a daemon process that polls a page to monitor system status, as long as everything is happy magic_check.html will exist. As soon as something goes down the file is deleted. I have the AWS ELB ...
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46 views

Webserver needed for django WSGI API?

My app is just a REST API written in django. There is no static content or html pages served. In setting up our production environment, we are planning on using amazon ELB (load balancer) to balance ...
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453 views

Elastic Beanstalk git aws.push taking a long time and more

I am starting to use the git aws.push command from within a git repository for a certain project we are currently working on. Within the root of the repo I have got the .elasticbeanstalk directory ...
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1k views

Launching an RDS in a private subnet in VPC and access it from a web application

I have setup a VPC which has two subnets. One is a public subnet (I have Internet Gateway attached to it) and the other one is a private subnet. My web application resides inside the public subnet and ...