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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1answer
49 views

The value for CNAME [closed]

I have 2 records at amazon route53: A: value example.com, value - elastic IP address CNAME: value: www.example.com, value - example.com Should I change the value of CNAME to be ec2-my-elastic IP ...
0
votes
1answer
379 views

How to free the (unused) memory?

Being a newbie in working with amazon ec2, I am trying to make my application work. I've connecting a few times by ssh, I've been running and stopping the server, sometimes the connection was lost, ...
0
votes
1answer
128 views

Varnish doesn't cache anything: varnishstat always with 0 ratio

I've set up apache and Varnish, no particular configuration involved (apache on 8080, varnish serving pages at port 80). I also dropped cookies in Varnish to ensure maximum caching of Wordpress sites. ...
0
votes
1answer
36 views

Updating aws security group from an instance

I am new to aws. I have a third party service running on an instance. The service uses a few different ports. When there is a need to restart the service some of the ports change randomly even though ...
0
votes
1answer
33 views

How do I use the disks on an EC2 hi1.4xlarge spot instance

I'd like to try out EC2 and so I'd like to launch a cheap spot instance to play around with. The hi1.4xlarge is supposed to have 2 SSDs, but I can't find them on the machine. I've launched the ...
-1
votes
2answers
144 views

Amazon VPC: How to block inbound traffic on specific IP of an instance while allowing on other IPs of the same instance

Specifications I have an amazon VPC instance with the following specifications: Windows 2003 (32 bit). Two Network Interfaces each with 6 IPs. 6 instances of a software (called backweb) installed ...
0
votes
1answer
63 views

Riverbed Stringray TrafficManger - API calls for Autoscaling

I am looking for advice on writing a bash script to put new server that we spin-up in AWS and get them added to our Stingrays. We are creating a new environment in AWS that will be muilt-AZ in AWS ...
0
votes
0answers
71 views

using git with web hook from github

I try to deploy from a github web hook my code. So I create a deploy file: <?php error_reporting(E_ALL); if ( $_POST['payload'] ) { echo ("****************************************\n"); ...
1
vote
0answers
609 views

Amazon Cloudfront with S3. Access Denied

We're trying to distribute out S3 buckets via Cloudfront but for some reason the only response is an AccessDenied XML document like the following: <Error> ...
6
votes
2answers
139 views

How to change assigned letter for Ephemeral drives automatically?

I have an AWS Windows box (Windows 2008 R2) with the following disks: C:\ 60 Gb (EBS) D:\ 200 Gb (EBS) Y:\ 40 Gb (Ephemeral SSD) Z:\ 40 Gb (Ephemeral SSD) Every time it boots I change ephemeral ...
0
votes
1answer
70 views

Use Wildcard SSL with Amazon EC2 instance, secure.mydomain.com -> EC2 instance

I recently purchased my first wildcard SSL certificate and I am trying to use it to secure the connection between my site (Cent OS 6 VPS) and an Amazon EC2 instance running Ubuntu 12.04. My primary ...
1
vote
1answer
57 views

Can our AWS direct connect be accessed by others?

We're turning up an AWS direct connect circuit soon for some internal transfers, mainly for backups between our instances in EC2 and some colo'd resources near AWS. The details of the data and our ...
0
votes
1answer
31 views

SSH broken pipe error after adding user to group

I did something quite stupidly, apparently. I was trying to set up SFTP, and followed a tutorial that ultimately got me to run usermod -a -G sftpusers ubuntu. After doing so, trying to connect via ...
0
votes
1answer
265 views

Amazon: How do I know if I need Provisioned IOPS?

We recently moved to Amazon Web Servers and are still learning our way around. Our EC2 Web instance and our RDS MySQL instance (right now we only have 1 of each) seem to be chugging along okay. But I ...
2
votes
1answer
59 views

Amazon AWS: Can I attach volumes at runtime?

I can attach volumes in the AWS Web Console by going to Volumes and attach it to my instance. Unfortunately the Linux Server does not react to this addition of the volume. Nothing appears in dmesg, ...
4
votes
2answers
2k views

Amazon RDS Instances: db.m1.large vs db.m3.large

Recently, Amazon announced new instance types for RDS. Currently, we are running db.m1.large, and it looks like the new db.m3.large is comparable but cheaper. We're new to AWS, so before moving ...
0
votes
1answer
221 views

Is it possible to limit EC2 console access to machines within a specific VPC via IAM?

I would like to create a user that has full console access (API too) specifically to just one VPC in our AWS environment. The result should be such that when clicking on EC2 Instances, the user ...
0
votes
0answers
72 views

Auto-login to aws ec2 instance running windows on startup

I'm trying to run a service on startup of a windows instance on amazon. So far it is a manual process where I have to start rdp in, log in and then start the process. I'd like it when the instance ...
0
votes
1answer
42 views

Freezing the state of an ec2 instance

Was wondering if there is a way to "freeze" a running ec2 server. This means existing processes are not killed but saved, they are then resumed when the instance is resumed. Virtualbox from Oracle ...
1
vote
2answers
54 views

in cloudformation is it possible to create a reusable string?

i have a string the is formed from a number of variables which i use for many different things such as Tags and host names. is there a way of creating a reusable string that i can just Ref though ...
0
votes
1answer
74 views

Should I stick with ELB? How bad is a DDoS attack of 2 million packets per second?

I have an Elastic Load Balancer (ELB) on Amazon Web Services under DDoS attack (specifically a SYN flood) that Amazon has said occasionally hit over 2.4 million packets per second. While it hasn't ...
0
votes
0answers
18 views

mkfs doesn't work using fabric

I am writing a python script that creating an amazon volume and attach it to an instance using boto. To do so, I need to create a file system using mkfs command. So, I wrote this code: with ...
-1
votes
1answer
108 views

How do I autoscale windows servers w/ amazon ec2

I'm building a distributed app which consists of a load balancer, web-server, database server, messaging queue, and backend workers. Workers consume messages off the queue, perform tasks and then ...
1
vote
0answers
50 views

ELB healthcheck with multiple applications on same instance

Right now we're in the process of migrating our application on AWS, and we plan on having two applications (java war) on each instance ( We're using Tomcat as our application server). One of them has ...
0
votes
3answers
573 views

Accessing Amazon S3 from a private VPC subnet

If I have a VPC running and some servers located in the private portion of that network that do backend processing by downloading files from amazon s3, can I access S3 internally to get at those ...
1
vote
0answers
29 views

Unchanged Elastic Beanstalk transitions to RED health

I've got an application running on Elastic Beanstalk that seems to randomly transition to RED. The App is running just fine and has been for a while (it is also not crashing) but every once in a while ...
2
votes
1answer
75 views

How do I access and use an AWS RDS reserved instance?

I've set up several AWS RDS on-demand instances. Each time, the process was the same, and it included selecting instance type, capacity, storage, etc. When I'm done, and click on the instance icon, I ...
0
votes
0answers
88 views

Connection Refused when connecting ssh with putty on aws instance

We created an ebs volume out of a snapshot of an running instance's root volume and then attached this new volume to instance A. When ssh connecting in putty, there is error saying Connection Refused. ...
0
votes
1answer
778 views

How to troubleshoot slow performance on AWS EC2/RDS?

We recently moved our web servers from some 10 year old boxes to AWS EC2. Usage of the site is currently higher now (it's our busy season) and the site has become much slower, which is unexpected ...
0
votes
0answers
39 views

Upgrade the storage and/or provisioned IOPS on a reserved RDS instance?

I would like to reserve an RDS instance, but as of right now my instance does not need a lot of storage provisioned. I would like to reserve the instance with 100GB and 500 IOPS provisioned, but I ...
-1
votes
2answers
669 views

Bad disk performance on m3.medium (SSD) EC2 instance [closed]

May be I'm missing something but at a glance new SSD-based m3.medium EC2 instance doesn't provide any disk performance advantage. I didn't run benchmark tools yet, but directory copying, directory ...
0
votes
0answers
22 views

At what point do I shell out for a load balanced instance? [duplicate]

I'm primarily a node.js developer, and I'm moving my apps over to AWS from Nodejitsu slowly. I was looking at AWS pricing, and it looks like Elastic Load Balancers are quite expense, for a small time ...
0
votes
0answers
174 views

Does AWS EC2 have limits on concurrent connections?

No matter what I do to my EC2 instance, any size and with apache/ubuntu. I can't get it to go over 1400 concurrent connections. Have set the prefork settings high, set ulimit to 1000000 Is this ...
1
vote
2answers
92 views

Avoid Man in Middle AWS load balancer

I have a load balancer configurated with the port 443 to port 80 of the ec2 servers and with a sniffer like Burtsuite can I edit the request. How can configure the ELB to avoid this type of attack?. ...
0
votes
1answer
110 views

Connectivity between Web Server and SQL Server inside Amazon VPC

I have a Webserver and a SQL Server inside an Amazon VPC. Previously, a Webserver outside the VPC could connect to the SQL Server fine. Now, sometime, when running SQL Scripts (the deployment script ...
0
votes
1answer
82 views

Anyway to determine Amazon Machine Image (Creation Date)?

I am trying to see if anyone knows how to identify the creation date for Amazon Machine Image(s)? I have looked all through the documentation on the AWS site, and do not see anything. The only ...
2
votes
3answers
120 views

Backup EC2 instances

I found a lot of questions to this topic already, but I'm still not 100% sure what's the best approach to do so. The option I'd prefer is using EBS snapshots. The pros would be that I can spin up a ...
0
votes
2answers
83 views

DHCP complicates using IP Address Source in Amazon EC2 Security group settings

Background: I am learning to setup my amazon web services account. I watched a video tutorial(http://youtu.be/-xVyuLJZFYc), where they mention that within the security groups dashboard, one could ...
0
votes
1answer
90 views

Move AWS Resources to another Account

We are running various AWS resources currently in an account namely but not limited to : EC2 (we can copy AMIs), RDS,VPC,IAM, S3, SNS, CloudWatch, CloudFront,Auto Scaling we now want to move ...
0
votes
1answer
26 views

How can I rename a key pair in AWS?

I am using a key pair called 'newkey' on many instances. I wish to keep using this key, but change the name of the key pair (obviously 'newkey' is quite vague, and won't be new forever). Please note: ...
2
votes
0answers
42 views

How can I find a security group's dependencies? [duplicate]

There is a similar question that didn't receive a proper answer. How can I find a security group's dependencies? These include EC2 instances, but other services also create dependencies, like the ...
0
votes
2answers
408 views

How to flush Amazon Linux AMI DNS cache?

The typical way of flushing the dns cache does not seem possible in Amazon Linux AMI: service nscd restart does not work because it's not included within the VM. service dnsmasq restart does not ...
-3
votes
1answer
333 views

Google Cloud Storage vs Amazone S3 + Cloudfront? [closed]

So I am building a web service which is going to be hosting files up to 500mb in size, and am finished with the coding and now deciding on hosting. I see that Amazon Web Services is very popular, but ...
0
votes
3answers
68 views

Setup replication from one local disk to another local disk ( Ubuntu )

Is there is are some way to setup local replication of the one disk to the another ( Ubuntu ) in the such way that all read operations will be involve only first disk ? Such configuration will be very ...
0
votes
1answer
63 views

How to setup windows server 2012 NIC settings with 2 NICs?

I have 3 subnets created in a Amazon VPC. Database private: 10.60.1.0/24 Application private 10.60.2.0/24 Public 10.60.3.0/24 I would like to have limited internet access to a server in the ...
2
votes
1answer
160 views

Running commands/tasks on multiple EC2 instances simultaneously

I've been given a task where I have to utilize about 200 EC2 instances in AWS. Since I'm completely new to AWS, I'm having trouble doing basic stuff. Each instance is a Ubuntu and they all have the ...
0
votes
0answers
82 views

Network drops SSH connection to EC2 only

I have an EC2 instance (in eu-west-1) which I've been SSH'ing into for almost a year, but recently the connection simply hangs (i.e. becomes fully unresponsive) when an executed command returns more ...
0
votes
2answers
154 views

AWS EC2 Ubuntu 13.04 Upgrade to Ubuntu 13.10

I want to upgrade my servers from Ubuntu 13.04 server to Ubuntu 13.10 server on AWS EC2. I have 7 servers and each doing a different task. Some of the tool we use on the server are Apache, PHP, ...
0
votes
1answer
39 views

EC2 Ubuntu Instance Occasional Downtime

i'm having trouble with an EC2 instance experiencing a long period (several hours) of downtime every day instance type: t1.micro availability zone: ap-southeast-2a security groups: allow all ICMP, ...
1
vote
0answers
63 views

adding an ELB to an existing Auto Scaling group

I just created two new ELBs, and I'm trying to figure out how to add one of them to an existing autoscaling group; so far the only way that this seems to be possible is by recreating the already ...