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Questions tagged [amazon-ec2]

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

35 votes
4 answers
53k views

Where does Amazon publish the range of IP addresses used for EC2 instances by region?

How can I keep updated of changes to the range of IP addresses that Amazon will use for EC2 instances. I want to add a range of IPs to my firewall settings to allow access to my 'ground based' mysql ...
undefined's user avatar
  • 654
35 votes
4 answers
66k views

How to make EC2 user data script run again on startup?

After cloud-init runs a user data script on the first boot of an EC2 instance, a state file is presumably written so that cloud-init won't run the script again on subsequent reboots. There are cases ...
Mike Conigliaro's user avatar
35 votes
5 answers
33k views

What does %st mean in top?

Here is an example from my top: Cpu(s): 6.0%us, 3.0%sy, 0.0%ni, 78.7%id, 0.0%wa, 0.0%hi, 0.3%si, 12.0%st I am trying to figure out the significance of the %st field. I read that it means steal ...
Ben's user avatar
  • 575
34 votes
3 answers
66k views

Cannot mount an existing EBS on AWS

I tried mounting an existing EBS Storage (which has data) to an instance, but it keeps throwing this error. mount: wrong fs type, bad option, bad superblock on /dev/xvdf, missing codepage or ...
Sai's user avatar
  • 343
34 votes
8 answers
109k views

How to copy files to Amazon EC2 Windows instance from my local machine?

I have created a new Windows instance on Amazon EC2. I want to copy some files from my local machine to the instance. How do I go about it?
user avatar
33 votes
5 answers
50k views

Nginx set_real_ip_from AWS ELB load balancer address

I have a set of Nginx servers behind an Amazon ELB load balancer. I am using set_real_ip (from the HttpRealIpModule) so that I can access the originating client IP address on these servers (for ...
vitch's user avatar
  • 640
33 votes
6 answers
217k views

RSA certificate configured for SERVER does NOT include an ID which matches the server name

I recently started a LAMP server (all the latest versions) w/ WordPress on it, and I'm trying to install a SSL certificate that I recently purchased. When I restart apachectl, error_log gives me this: ...
eclipsis's user avatar
  • 433
33 votes
4 answers
57k views

Enable Password Login for SSH on Amazon Linux AMI

I wan't to be able to login via ssh with a password and not the key file. Yeah I know it's totally insecure but at this point in the config I was turning variables off and on left and right trying to ...
evolvd's user avatar
  • 1,374
33 votes
1 answer
13k views

How do I ensure my AWS free tier plan doesn't exceed the free usage limit?

I'm spinning up a free tier instance and I don't want to accidentally exceed the limit. How do I do that?
Alexander Suraphel's user avatar
32 votes
7 answers
44k views

How to verify a AWS VPC (S3) endpoint works?

I added a VPC endpoint to my VPC using CloudFormation, and allowed s3 usage. The routes are visible in the AWS console, but not in the local routing tables of the EC2 instances: $ route -n Kernel IP ...
M. Glatki's user avatar
  • 2,124
32 votes
2 answers
33k views

AWS, Bandwidth and content delivery

My question is about Virtual Machines and delivering their content over the servers connection to the internet. I have an Ec2 windows instance, and its network connection appears to be 100mbps If I ...
Keeno's user avatar
  • 611
32 votes
1 answer
14k views

update-rc.d on Amazon Linux

I am fairly new to system administration and I am simply trying to make sure nginx runs at startup on my Amazon EC2 instance (running Amazon linux) I have placed the script in /etc/init.d, but it ...
Andrew Guenther's user avatar
31 votes
5 answers
81k views

amazon linux 2 ami - aws - How to install mysql in Amazon Linux 2?

I am trying to install mysql in amazon linux 2 ami and am not able to do it. sudo yum install mysql56-server -> doesn't work amazon-linux-extras list -> doesn't list mysql I do not want ...
Jey Geethan's user avatar
30 votes
5 answers
18k views

Terminated EC2 instances keep restarting

I have a couple of small EC2 instances (t1.micro and t2.micro) one of which was setup using AWS-EB. I'd like to terminate both of them, but whenever I terminate them, the re-appear in my list of ...
tdc's user avatar
  • 403
30 votes
3 answers
62k views

AWS CLI Command Line: How to use "--query" to output multiple source lines

I am using aws-cli version 1.7.8 to get the --query output to create one record that is derived from multiple lines. In this case I am trying to get specific information from describe-instances. In ...
Chris Charles's user avatar

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