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For questions about Amazon Web Services (AWS) in general. If your question is about a specific Amazon web service please use that tag, e.g. [amazon-s3], [amazon-ec2], [amazon-ecs], [aws-codedeploy]

1 vote
1 answer
81 views

How to find the total ips allowed by an AWS subnet?

Is there a way to find how many total ip addresses that an AWS subnet can hold? If my subnet CIDR is a.b.c.d/n, then the total ips allowed in this subnet - are they decided by a, b, c & d as well?
Biju's user avatar
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1 vote
1 answer
366 views

Do any services other than EC2s consume ip addresses in AWS?

SCENARIO: I am running out of free ips in my AWS subnets. I would like to talk to my infra team and request them to create new subnets. But they are asking me list of all ips I have consumed so far an …
Biju's user avatar
  • 255
3 votes
1 answer
2k views

Is there a way to export details of all EC2s in an AWS account?

I am aware there's a Tag Editor in AWS Console which allows us to export details of all EC2s in an AWS account. However that list seems to be missing ami and operating system of the EC2. Is there a wa …
Biju's user avatar
  • 255
5 votes
1 answer
3k views

When to use Apache Airflow (MWAA) in AWS instead of AWS Batch?

I am trying to get a compare and contrast of various job processing services in AWS like AWS Batch, MWAA (Managed Workflow for Apache Airflow). Both are used for processing jobs. Just trying to unders …
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  • 255
0 votes
1 answer
62 views

EKS NodeAffinity for Services

https://www.eksworkshop.com/beginner/140_assigning_pods/affinity/ Links like above usually show node affinity for "kind: Pod". Isn't it possible to use node affinity for "kind: Service" whereby all po …
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  • 255
0 votes
1 answer
292 views

How to verify the time zone change is correct on AWS EC2 using Ansible?

We can use the following code to set a new timezone on AWS EC2 using Ansible. --- - hosts: linuxservers proxmoxservers remote_user: ansible become: yes tasks: - name: 'Set timezone to Buenos …
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  • 255
1 vote
2 answers
4k views

Where to get OS Hardening Scripts for CIS Hardening Standards?

CIS provides benchmarks for hardening OS on AWS CIS also provides images which meet their own benchmarks above These CIS images are available here - https://www.cisecurity.org/blog/everything-you-nee …
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  • 255
4 votes
1 answer
2k views

How to auto generate a diagram out of my AWS VPC?

Does AWS provide a tool to visualize my VPC? I would like to generate an image file with all services (shown as icons) provisioned inside a VPC. Tools like draw.io and others are available. But doesnt …
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  • 255