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

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The remote destop screen is always a grey background [migrated]

I used the methods described in: http://www.serverwatch.com/server-tutorials/setting-up-vnc-on-ubuntu-in-the-amazon-ec2-Page-3.html and reliable virtual desktop environment for Amazon EC2 Ubuntu to ...
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18 views

amazon linux yum update changed sudo root permissions

I ssh'ed into my server, ran sudo yum update, and now I'm asked for a password to sudo anything. Looking back through update logs, I noticed this: /etc/sudoers.d/cloud-init saved as ...
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16 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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2answers
20 views

AWS EC2 Auto Scaling Groups, RDS, Route 53 and Constantly changing IP addresses

I setup an auto scaling group on EC2 along with an RDS Postgres instance. I am not using ELB. Maybe I should be... The challenge is that every time a new EC2 instance is created it assigns a unique ...
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1answer
34 views

Determining the old MX record [duplicate]

Our sysadmin created our mailserver years ago before he left. We recently decided to use gmail as our mail app and they required us to change the MX record to point to them on amazon route 53 app. I ...
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0answers
20 views

504 gateway timeout when accessing by hostname, but not by IP

I'm using Amazon EC2 with Elastic Load Balancing. On my web-based application, end-users connect to app.myapp.com get a 504 gateway timeout error when performing certain operations like converting a ...
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0answers
29 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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2answers
38 views

“Cannot open SSH Tunnel” on MySQL (corrected)

(help, patience and mercy... begginer lost haha) -Ok heres the deal, im trying to connect a EC2 Instance to MySQL throught SSH in MySQL Worckbrench -I set up the configurations this way SSH ...
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0answers
31 views

Turn on internet on ec2 Amazon [on hold]

I am new in AWS, so sorry for my noob-question. I have ec2, elastic ip, all out-connection in rules, but I cant ping google, for example. I read this, so I need do everything line by line? Can ...
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23 views

“Cannot open SSH Tunnel” on MySQL [on hold]

I have this problem: With this configuration:
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1answer
23 views

EC2 Failing Load Balancer Health Check

One of my projects is an internal web app which we are putting behind a load balancer. As of now there is only one ec2 (will be more in production) and the load balancer is not able to reach the ec2. ...
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2answers
50 views

How to setup a Domain Controller in the cloud

We are implementing a new Windows Server 2012 R2 domain controller for our 2 small offices, and we want to set it up on Amazon EC2. I have read that with this type of setup you normally use a VPN. How ...
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1answer
22 views

EC2 Windows Server 2012 Core AMI Issue [closed]

I set up the following AMI for windows server 2012 R2 core in an EC2 instance: Windows_Server-2012-R2_RTM-English-64Bit-Core-2014.11.19 (ami-bc9a0bd4) I have an EIP associated to the instance and ...
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1answer
63 views

Why the time taken to fetch results of a query for 10,000 times from a RDS is so uneven? (experiment)

tl;dr : Why the time taken to fetch results of a SELECT statement for 10,000 times from a RDS when requested from an EC2 is so uneven? Updated the question with results of small and medium RDS ...
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1answer
17 views

30GB EBS Backed Ubuntu server showing 7.74GB in landscape-sysinfo

I created a ec2 instance with 30GB of EBS volumne. However when i SSH into my ec2 instance, the landscape-sysinfo says usage of 9.7% of 7.74GB. Wasn't it suppose to be 30GB instead of 7.74GB System ...
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1answer
38 views

How to point AWS EC2 to Domain name server [closed]

I have amazon free tier ec2 account. Have deployed my java EE application into apache tomcat installed in AWS. I have created new elastic IP and associated with the public DNS of the AWS. Now I can ...
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0answers
13 views

VPC DHCP Option Sets Missing Option 3 Router

Maybe I'm missing something, but why can you not set your option "003 Router" in the DHCP configuration in EC2? http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_DHCP_Options.html I'd like ...
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0answers
28 views

My mail server from ec2 becomes unresponsive (can't ssh, nor manages mails) after 2-3 days

Hy! I have configured my server with http://www.iredmail.org/ and everything worked nice for 1-2 days and then it stopped working. Everything is unresponsive. SSH hangs; Web server interface ...
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39 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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1answer
44 views

Enabling TLS1.0? Cannot communicate securely with peer: no connection encryption algorithms

For over a year I have been running a photo based website that allows customers to order prints, which are subsequently fulfilled by a printing company. Orders are posted in XML format to a ...
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0answers
10 views

ModSecurity on Apache 2.2 in EC2 - HTTP Status 413 messages dropped

Hi I am running Mod_Security on Ubuntu instances in EC2 behind an Elastic Loadbalancer. The app is a Ruby App. I have set SecRequestBodyLimit 293601280 When I upload files below that size, they are ...
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47 views

How best to maintain a recent bash version on amazon linux?

I require Bash 4.2 or higher. Amazon Linux default repositories only provide Bash 4.1. I have done some searches and can not find a yum repository for recent versions of Bash. I don't want to compile ...
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15 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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1answer
26 views

Can't mount raid 1 with different size disks

I have a EC2 instance with a an ssd on xvdm (20 gb, 60 iops) and another ssd on xvdb (16 gb, better iops - instance store). The xvdm contains a mysql database and I'm trying to join these 2 disks in a ...
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55 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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2answers
221 views

How to join computer to domain

I have a DC running Windows Server 2012 with an internal IP of 172.31.27.158. It is both a DC and a DNS Server. Here's proof that DNS is running fine: The machine that I would like to add to the ...
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1answer
43 views

Dovecot configuration

I was setting up a mail server on Amazon EC2 using postfix and dovcot and I seem to be stack on starting up dovecot service. Here is the message i got when I run Service dovecot status dovecot ...
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0answers
44 views

cURL request from EC2-VPC instance (in default VPC) to retrieve RSS feed timing out

I am trying to make a cURL request from EC2-VPC (in default VPC) to retrieve RSS Feed data. # cURL request from EC2-VPC instance curl -Lv -o test_rss.txt http://www.example.com/feed/rss/ The cURL ...
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46 views

Amazon AWS EC2 instance Exported to local machine

I have several Amazon AWS EC2 virtual machines that I created on AWS EC2. They were not imported, they were created there. I would like to export these machines in order to achieve local backups, ...
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7 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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25 views

autopostgresqlbackup postgres authentication error

I am trying to use autopostgresqlbackup on ubuntu on an ec2 instance. I can log in with psql on the command line and it is picking up my .pgpass file and everything looks fine. When I run 'sudo ...
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1answer
58 views

I can't upload server certificate on AWS IAM

I got AWS iam working on my server, and trying to upload some certificates: aws iam upload-server-certificate --server-certificate-name domain2014 --certificate-body ...
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0answers
15 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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1answer
25 views

Allow traffic from any instance in AWS VPC

'm trying to create a security group that allows all inbound traffic originating from within my VPC. I thought I could simply specify my CIDR block, but that doesn't seem to work and requests fail ...
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1answer
29 views

Amazon EC2: Not able to login(RDP) to Instance after migrating root ebs volume.

I am trying to access my windows instance but I am unable to login (RDP) into it. What I have done is I have taken up a snapshot of a root EBS volume and attached that to newly launched instance. The ...
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1answer
18 views

Should you use secondary IP configuration to configure applications in EC2?

I am using DHCP to assign primary IP addresses in a subnet within a Windows Amazon Web Services EC2 instance To avoid issues where the boxes are rebooted and the DHCP address changes, I have assigned ...
3
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1answer
72 views

Internet access from private VPC subnet?

My brain is a little bit fried trying to figure this out but I can't seem to get private subnets to connect to the internet to grab updates for example. Basically all I want is web access for these ...
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1answer
26 views

AWS: authorizeSecurityGroupIngress within a VPC

I'm using the NodeJS SDK to add an inbound rule to a db security group from a db-access security group. Both of these security groups exist within a VPC, however when I add the ingress rule using ...
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20 views

How to add SSL certificate to domain that is URL-frame redirected to AWS EC2 server

Currently running a node.js webapp with a NginX reverse proxy on an Amazon EC2 web server instance. Furthermore, I have a domain, call it example.com, which URL-frame redirects to this web server. ...
0
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1answer
33 views

Elastic Load Balancer bandwith vs EC2 [duplicate]

How does pricing with AWS works. By exemple: 1024 Go of Data Transfer Out in their calculator (http://calculator.s3.amazonaws.com/index.html) cost about 120$. If you remove this 1024Go and move it ...
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1answer
76 views

Network File Systems (NFS) between multiple AWS EC2 Instances for VisualSVN Servers behind Load Balancer

I have a couple of windows server instances running on Amazon EC2 with VisualSVN Server and would like to make them a bit more fault tolerant by running a duplicate instance with load balancers. The ...
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1answer
95 views

Shared File Systems between multiple AWS EC2 instances

I have a couple of windows server instances running on Amazon EC2 and would like to make them a bit more fault tolerant by running a duplicate instance with load balancers. The problem is the ...
0
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1answer
38 views

AWS EC2 SSL Server certificate does not match the URL

After uploading the certificate to iam, when I visit https://www.mywebsite.com I get this error The identity of this website has not been verified. • Server's certificate does not match the URL. ...
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1answer
25 views

Instance created from shared snapshot gives Server refused our key error

I have created an instance from a shared snapshot from other aws account,following steps were done by me, 1.Share snapshot from other account. 2.copy it to my account. 3.create a volume from it ...
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1answer
56 views

Assigning a public ip to an ec2 in cloudformation?

In the vpc I am using on aws ec2's do not get a public ip address by default. I am trying to add one manually after referencing this and this bit of documentation. Currently my cloudformation ...
3
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2answers
211 views

Amazon EC2 VPC: NAT instance download speed performance drop

I have a set of servers inside Amazon EC2 in VPC. Inside this VPC I have a private subnet and a public subnet. In the public subnet I have set up a NAT machine on a t2.micro instance that basically ...
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78 views

“A new version of /boot/grub/menu.lst is available” when upgrading Ubuntu on an AWS server

I just tried to do a sudo do_release_upgrade on an AWS EC2 Ubuntu 13.10 server to upgrade to 14.04. All was going well until I got the following message: A new version of /boot/grub/menu.lst is ...
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39 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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1answer
17 views

Terminate a specific instance and scale down an Autoscaling group managed by CloudFormation

We have two applications that require a long time(between 20 minutes and 7 days) to finish processing their data and deprovision properly. We still want to manage them in Autoscaling groups with ...
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30 views

AWS Custom AMI not running userdata script

We bake AMI's and lately I have wanted to run some user-data scripts to notify cloud formation when the instance is done booting and put it into service. I am using cfn-signal to do this. On the ...