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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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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139 views

FreeIPA Install on CentOS 7 - “Cannot contact any KDC”

I am trying to install a new stand alone instance of FreeIPA on CentOS 7. I am doing this in an Amazon AWS EC2 environment. The install completes flawlessly every time, however, when I attempt to ...
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35 views

Amazon AWS custom metric for Disk usage

I needed to monitor the space utilization for ec2 istances in cloudwatch. I used the scripts "Amazon CloudWatch Monitoring Scripts for Linux" with this command: ./mon-put-instance-data.pl ...
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43 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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46 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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33 views

elasticsearch not enabled when installed on additional device

Here's the deal : I'm working with AWS EC2 instances (Centos 7). Elasticsearch is installed from the sources in the folder /app. The elasticsearch service is managed by init.d. The problem is that if ...
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90 views

Connecting to Amazon VPC instance's public IP over hardware VPN

I'm trying to configure an AWS VPC with a public subnet and hardware VPN access, but I have a requirement that connections over the VPN must be able to connect to a particular EC2 instance using a ...
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4 views

Create alias that fixes (or defaults) some parameters in PowerShell

We manage a few amazon servers that aren't on our AD; I have to supply a couple of parameters the same way repeatedly. We'd like to be able to define Invoke-AwsCommand that can be called like this: ...
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26 views

route53 migration using cli53 - how to prepare zonefiles?

I have exported zonefiles from BIND and installed cli53 to import my records to AWS Route53. From what I can gather, I need to rid the files of any SOA and NS references. Right? Does anyone have a ...
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22 views

Mount the other half of instance store volume

I have a running c3.xlarge EC2 instance on AWS. As listed in http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/InstanceStorage.html#StorageOnInstanceTypes , it should provide 2 x 40GB SSD instance ...
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78 views

AWS Linux RHEL instance unable to format and load new storage partition

I have an AWS RHEL instance. Following are the storage devices on it: $lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 20G 0 disk xvda1 202:1 0 6G 0 part / I ...
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26 views

Windows instance in AWS Auto scaling, Once autoscaling done i should be part of DC

I’m working on windows technologies last few years, but new to cloud environment. What I’m facing is that, I have DC server, under that a Web server both are in windows 2012. I need to auto scale the ...
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76 views

Unable to open redis 6379 for inbound on AWS EC2

I have two servers on EC2. One hosting my php application and other hosting my redis server. I am managing my php session and data on redis server. So on my php server I gave the ip:port as session ...
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33 views

Elastic Load Balancer connection draining causes a blank page for some web sessions

I'm running 3 EC2 instances behind an ELB with connection draining enabled (set to 300ms). When I remove an instance from it, I can see fewer and fewer web requests in the server log until eventually ...
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63 views

crontab at reboot for EC2 instance

I'm trying to mount an EBS volume after restart. It does not work. I set the mount after reboot, in the following manner: echo "@reboot 'sudo mount $DEVICE_PATH $TARGET_PATH -O noatime,noexec'" | ...
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66 views

Using Redis for multiple Instances for session management

Hi We are in the process of implementing AWS opsworks. There will be multiple instances of PHP App Servers and one instance of mysql. We are planning to use redis and phpredis for session and data ...
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136 views

'end_request: I/O error, dev xvda1' after rebooting AWS EC2 instance

I rebooted one of our Amazon EC2 instances after having some performance problems and had a look at the Actions > Instance Settings > Get System Log to see this: Amazon Linux AMI release 2014.09 ...
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34 views

Logging into an AWS EC2 instance from another machine in EC2

I have a few AWS EC2 instances that can SSH into each other. They are not in a VPC as this is an older AWS account and was active before VPC. One particular EC2 instance (zeta) is not able to SSH into ...
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102 views

When using Docker on AWS Elastic Beanstalk, I can't access an RDS instance

When I ssh into the EB instance, I am able to connect to the RDS instance. However, once inside Docker (I have tested this by running bash under Docker), I am unable to connect to it. I am able to ...
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21 views

More than one celery server sharing the same message queue?

I have a number of servers all running the same celery app to process tasks. I am using SQS as the message queue. Right now, each app appears to be automatically creating its own queue when it ...
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61 views

AWS EC2 Looses public Internet after install Visual Studio 2013

I am trying to setup a build server on an AWS EC2. It is a base Windows 2012 R2, MsSQL 2014 and TeamCity 9.x. At this point the public internet works just fine. I can do windows updates and ...
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49 views

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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154 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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21 views

amazon aws ec2 setting ppp vpn server POSTROUTING eth3 failed

I use amazon aws ec2 to setting ppp pptpd vpn server. I have two interface is eth0 and eth3. And the iptables -t nat -A POSTROUTING -o eth0 -s 192.168.1.100 -j SNAT --to-source 10.0.0.233 is working ...
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30 views

AWS volume from snapshot missing data

This is a weird one. On a new ec2 instance + new data volume attached at /dev/xvdb mounted with: mkfs -t ext4 /dev/xvdb mkdir /mnt/xvdb mount -t ext4 /dev/xvdb /mnt/xvdb I take a snapshot of ...
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43 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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34 views

DirectAccess Multiple Subnet Deployment

I am looking at doing a DirectAccess rollout on AWS using a single Server 2012 R2 instance behind an edge device. My clients are mostly running Windows 7 Pro/Ultimate, but there will be some other ...
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212 views

haproxy proxy protocol x-forwarded-for

I'm using haproxy instances behind AWS ELB. For HTTP Rest, i works like a charm. Now i want to dispatch websockets and have to switch my AWS ELB to TCP mode. I Want to get realip from by backend ...
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70 views

PHP FPM, chroot can't connect to AWS RDS

I've been experimenting with chroot'ing php-fpm pools via the built-in chroot method in php's pool config. This is for the purpose of hosting multiple wordpress websites on the same AWS EC2 instance. ...
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220 views

Why can't I SSH to this AWS NAT instance in a public subnet?

For experimentation purposes, I’m trying to setup an AWS EC2 inside a VPC that has both public and private subnets as described in this tutorial. However, when I try to SSH in step #2, it fails ...
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114 views

Can we connect an OSX computer to an AWS VPC VPN?

We have a OSX computer we would like to connect to our AWS VPC. This OSX computer is on a network we do not control in a different physical location as the rest of our network. Using OSXs Networking ...
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340 views

Jenkins publish over ssh success to connect the server but failed put file

I have a problem that when I do build to my job, its cannot put my file on the server directory in console output i get the message "ERROR: Exception when publishing, exception message [Permission ...
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67 views

OpenVPN Traceroute Issue

I have the following basic OpenVPN configuration: Datacenter Side: Subnet: 192.168.168/24 WAN->Router(192.168.168.1)->OpenVPN Server(192.168.168.200) Config File: port 1195 dev tun remote ...
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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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71 views

AWS Cloud Front with S3, serving static files- Redirects implemented via java script at browser level

We have our Java application on tomcat server webpages- the application fetch content from multiple services and Database to create page and respond. We are checking for a best method to improve the ...
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350 views

Set up pfSense on AWS VPC?

I am attempting to setup pfSense as a nat box for internal servers on a VPC. I have followed the guides posted for configuring access and have followed the AWS instructions for setting up and ...
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37 views

AWS IAM Roles restricted list

Is there any way to restrict what IAM profiles are listed when launching an EC2 instance using the dashboard in AWS? I can specify what roles can be assigned using this IAM role block { ...
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167 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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24 views

Amazon RDS MySQL Replication for Backup

I was thinking of setting up Amazon RDS for MySQL as a slave MySQL server for backing up MySQL databases from my dedicated server. The server will be programatically brought online for replication and ...
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36 views

AWS Directory Service compatibility with XenApp / XenDesktop

I have a question regarding AWS Directory Service compatibility with Citrix XenApp / XenDesktop. I am about to deploy a Citrix XenApp environment in AWS. A requirement for XenApp is a working Active ...
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175 views

Amazon AWS Site-to-Site VPN doesn't allow concurrent pings

I have some strange behaviour with an AWS VPC site-to-site set up and would like some help to understand where my problem might be. Set Up I have a VPC with a private and public subnet, there is a ...
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211 views

Enabling the Internet Connection on an EC2 Windows Server 2012 Machine

I've disabled the firewall: netsh firewall set opmode disable I've made sure to accept all inbound and all outbound connections: Is there anything that I should be installing or adding on to the ...
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74 views

How to list all VPC dependencies in AWS CLI?

I want to delete VPC through CLI. But get an error: A client error (DependencyViolation) occurred when calling the DeleteVpc operation: The vpc 'vpc-xxx' has dependencies and cannot be deleted. ...
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230 views

IAM user with full s3 access can't create directory

I've a AWS IAM user which has full access to Amazon S3 The policy is the following { "Statement": [ { "Effect": "Allow", "Action": "s3:ListAllMyBuckets", ...
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100 views

Server crash: BSOD caused by bcedit.exe - How can this be solved?

On one of our servers (Windows Server 2008 R2 - Datacenter) hosted in the AWS cloud we got a BSOD, the MiniDump simply said: PAGE_FAULT_IN_NONPAGED_AREA Caused by driver: ntoskrnl.exe The AWS ...
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95 views

Why these two CPU usage graphs (CloudWatch vs. Cacti) are different?

I have collected CPU stats of a server in AWS (m3.2xlarge instance with Windows 2008) using CloudWatch and Cacti for the same period. Here you can see last week CPU usage captured by Cloud Watch with ...
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76 views

Unable to create partition utilizing all sectors on an AWS EC2 instance with EBS volume

I am working on an AWS EC2 instance. I have attached an EBS volume from other instance to this machine. I want to expand root partition on the volume. I am using gdisk. Following is the output of p ...
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221 views

Configuring SSL connection to RDS using mysql workbench

I connected to my RDS db using MySQL Workbench. However, SSL is not active on the connection. When I force SSL, it fails. Config is default. To enable SSL configuration, Mysql Workbench asks for the ...
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95 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, ...