Tagged Questions

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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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
7 views

Locust AWS python requirements fails

Folks, Trying to setup Locust in AWS using latest amazon linux. After installing locust, i get the following when starting in master mode: locust -f foo.py --master Traceback (most recent call ...
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1answer
28 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 ...
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1answer
11 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
8 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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0answers
11 views

How do I set up an ssh -w tunnel VPN between AWS VPC and a Linode?

I'm probably not going to use this for the long term, but I still want to know why this isn't working. I've set up a simple ssh tunnel from my Linode instance to one AWS EC2 instance within my VPC. ...
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1answer
29 views

Mysqld.bin and php-fpm eating up all my CPU

mysqld.bin and php-fpm are eating up all my CPU. Here is the output of top run 10 times: https://gist.github.com/two7sclash/5081188dd00e8fc6bfcb I've got plenty of memory and CPU for the load ...
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0answers
7 views

AWS - EC2 unable to detect EBS drives

after an unexpected restart on a windows server 2021 r2 server, the server is unable to detect the EBS drives. i have attached about 4 drives but they are invisible/not detected in device manager/disk ...
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0answers
29 views

Can CDN overcome cross country latency?

I have my servers in US while my customers are purely from India. Currently, my customers are facing a latency around (250 - 300ms) If I use CDN for static content caching would it help? My site is ...
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0answers
14 views

s3 policy for quota

Is there a s3 policy rule that can only allow a user to upload so many GB of files? Basically looking to set a quota on the objects a user can upload. Here is the rule set that I have now: { ...
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0answers
9 views

Amazon ec-2 not allowing connection on port 8088 (custom webApp) event after adding it to security group on EC2-instance [on hold]

Amazon ec-2 windows server instance not allowing connection on port 8088 (custom webApp) event after adding it to security group on EC2-instance. on netstat the port comes out as filtered.
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0answers
15 views

Amazon S3 permission policy: I still get denied access

I have a problem with a permission policy of an Amazon S3 user. I've read this answer and this post too but the problem is still there: Each time I simulate the policy, I get "Implicitly denied ...
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1answer
16 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 ...
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1answer
11 views

How do I update the attribute of an item in AWS DynamoDB using the command line tool?

I'm using the following command to read a value from AWS DynamoDB: aws dynamodb get-item --table-name XXXTABLEXXX --key '{"key":{"S":"XXXKEYXXX"}}' --attributes-to-get XXXATTRXXX | awk '{print $2}' ...
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0answers
17 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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0answers
11 views

Conditional Property in AWS CloudFormation

We've got an AWS CloudFormation template for creating some EC2 instances. Some of those however require a specific PrivateIpAddress and I'm struggling to figure out how to incorporate that to the ...
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0answers
32 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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0answers
12 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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0answers
5 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 ...
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0answers
17 views

iptables on AWS - how to get traffic mirroring to work?

Has anyone successfully deployed 'iptables -t mangle -j TEE...' for monitoring traffic on AWS instances? If so, how? My objective is for client<->server traffic between external customers and EC2 ...
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votes
1answer
36 views

Can't connect to EC2 instance via web browser [on hold]

I'm a total newbie when it comes to servers and EC2 but I have an EC2 instance running which was stopped and restarted. Since that I haven't been able to connect via a web-browser to the site but can ...
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1answer
33 views

Keepalived unwanted transition to master

I'm starting 2 EC2 intances in Amazon with Cloudformation, the second instance starts about 30 seconds after the first one. The configuration looks like this : Instance 2 state BACKUP ...
4
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1answer
193 views

What is the size of an IO Operation (IOP) in AWS EBS?

My research suggests that both the standard and the maximum (kernel limitations) block size for modern file systems (ext4, xfs) is 4KB. However, AWS allows IO operations as large as 256KB and says ...
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2answers
65 views

How does Linux pick which network interface to use?

Let's say I have a machine with two network adapters on different subnets, eth0 (10.0.100.5) and eth1 (10.0.200.5). Assuming both subnets have routes to the internet (though their own NATs) and to the ...
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0answers
23 views

Elastic IP Not Resolving to Windows Instance

I'm sure I'm just missing a step, but I can't figure out how to get server to resolve to new elastic IP address. I appreciate everyone for their help. I've been trying to figure this out for a while ...
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1answer
20 views

How to get the Amazon Linux AMI version by AMI id?

I have an EC2 instance which runs an outdated Amazon Linux AMI (ami-5256b825). To upgrade to the most recent version, I first want to know what the differences between 2 images are. I only have the ...
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1answer
17 views

How to monitor machine status on EC2 [duplicate]

how do you guys often monitor the status of your vm on EC2? I am currently using CloudWatch and it seems that it can only give me CPU/network/io related stuff. What's your recommendation of server ...
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1answer
68 views

AWS EC2 Ubuntu 14.04 Instance smtp port forwarding from 25 to 2025

I am trying to step up port forwarding from port 25 to port 2025 on the same AWS EC2 Ubuntu 14.04 instance using iptables. I am using port 2025 to receive income emails using Alfresco. The first step ...
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0answers
20 views

ASP.NET/IIS <---> Solr/Tomcat setup on EC2 - “best practice” configuration

I am an ec2 newbie and deploying an asp.net application that interfaces with Apache solr (on Tomcat). In my dev environment I am running ASP.NET and Solr/Tomcat on my windows box. I am also ...
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0answers
11 views

How do I enable backup(snapshot) on redis elasticache t2.medium

I was able to create a snapshots of my m1.small caches but the backup button is disabled when I select my t2.medium. Is there a way for me to enable backup of a t2.medium redis elasticache?
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0answers
9 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 ...
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0answers
11 views

Amazon snapshot issue

This Question has 2 parts: 1) What snapshots can be safely removed, do I need to retain the ones from which a running instance was launched? 2) How are snapshots appearing from a shut down instance? ...
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0answers
20 views

Amazon AWS Subnets and their gateways

I am a Python developer, and I've been handed (gladly I might add) some DevOps duties. While I'm quite familiar with AWS' console, as well as fabric, and some chef, I'm stuck trying to add routes ...
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1answer
45 views

Connecting two AWS Regions: Why not use two Virtual Private Gateways?

I am attempting to connect two AWS regions. AWS's documentation suggests starting up an instance on both sides to run software IPSec (OpenSWAN or StrongSWAN), giving both instances an elastic IP and ...
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votes
1answer
16 views

Automatically Updating AMI using FTP

I am using AWS and have setup and Instance for my site. I have then created an AMI for this instance and setup load balancing to spin up additional instances when the CPU process gets to 60%+ which is ...
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0answers
12 views

How to make consistent deployment directory for AWS OpsWorks' S3 archive deployment across each servers?

I'm using S3 archive deployment app to deploy a zip file generated from build process. When I deploy to several servers I notice that the absolute path generated by the deployment are different on ...
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1answer
28 views

Perl modules is not getting installed in Amazon Linux AMI ( centOs 6.5)

I am configuring cloudwatch custom metrics which requires some perl modules to be installed. Here is the command I am trying to install the perl modules. yum install perl-Switch perl-Sys-Syslog ...
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1answer
13 views

Chrooted user logged out immediately after login

I am trying to use chroot to setup a user who can login via ssh and limit access to the /var/www directory. The server is on AWS running Amazon Linux 64-bit, openssh installed. I used ssh-keygen to ...
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1answer
21 views

How do I set the beanstalk .ebextensions .config “sources” key “target directory” to the current bundle directory

I'm working in a python 2.7 elastic beanstalk environment. I'm trying to use the sources key in an .ebextensions .config file to copy a tgz archive to a directory in my application root -- ...
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0answers
40 views

AWS connection error: Permission denied (publickey)

Sorry if this sounds redundant to you but trust me its not. I have tried almost majority of the links related to this problem but nothing is working for me so far. I even tried this article two. Below ...
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0answers
25 views

NGINX: proxy_cache altering headers

I have been having trouble building a proxy between my server and s3 to cache requests. I finally boiled it down to a single point of failure... http{ proxy_cache_path /home/cache levels=1:2 ...
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0answers
12 views

Nginx proxy cache invalidating request to s3

I have set up a proxy from my application server to a private s3 bucket to cache requests. I was having some trouble with it where s3 was rejecting my download requests (403 forbidden) and after some ...
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votes
2answers
41 views

How to confirm if AWS server is started and from what boot level?

I have an amazon ec2 instance which is attached to a 8gb volume. The instance is shown running and the volume is attached. After october update my site stopped working with connection refused error ...
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0answers
22 views

AWS: RDS instance(s) and connecting from remote machine

I'm moving a site over to AWS. It's on the Amazon-flavored Linux distro, using MySQL. I vaguely remember setting it up a couple of months ago (been busy), and allowed access from my elastic IP. I ...
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1answer
40 views

Cannot enable yum repositories on EC2 machine running Red Hat

I am setting up a Red Hat box on EC2. When I try to install anything using yum, I receive this message: There are no enabled repos. Run "yum repolist all" to see the repos you have. You can ...
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1answer
33 views

How to store a Cloudfront custom error page in S3?

I have a Cloudfront plugged on an AWS load balancer. I saw in the AWS documentation that I can customize Cloudfront custom error pages. I tried to store these error pages in S3 as it is recommended ...
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1answer
22 views

Can't give access to all servers belonging to a security group in AWS

My current structure 1 instance in a VPC set up with an Auto Scaling Group. 1 instance in same VPC with HaProxy load balancer routing MySQL traffic to RDS instances (in same VPC) I have tested and ...
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1answer
23 views

What should an s3 end point look like when configuring an ALIAS record in Route53?

I'm trying to point my root domain to an s3 bucket that redirects to www.mywebsite.com. However, when I try to configure my ALIAS record to point an s3 endpoint, the only endpoint that the dialogue ...
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1answer
35 views

Can you explain “Did you mess with /etc/fstab before rebooting” [duplicate]

I have struggle with AWS EC2 ubuntu server ssh connection refuse. After I wrote mount path on /etc/fstab and reboot, I can`t access the instance. I found your comment at Amazon EC2 - No SSH After ...
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1answer
30 views

Using Webdriver with Chrome — missing Shared Libraries

I am trying to run webdriver, but I keep getting the following error: [ec2-user@ip-172-30-0-41 ~]$ sudo ./chromedriver ./chromedriver: error while loading shared libraries: libgconf-2.so.4: cannot ...