Should I use public IP or private IP for connecting servers within the same VPC?
Hooman Bahreini asked: I have 2 Linux servers on AWS. Both servers are in the default vpc (aws default vpc). Both of these servers have their own Elastic IP. I …
Setting up networking after importing an AWS image
Vietyank asked: I have imported an AWS image into Virtualbox. It is an Ubuntu 18.04 distro. In VirtualBox, networking is set to use a bridged adapter. ssh requires a private …
node js app issues after AWS Instance snapshot
helpimlost asked: I had a node.js app with nginx running totally fine on a domain i purchased. It was run on an ubuntu server and all was well. I accidentally …
EC2 unable to reboot
Sebastiano asked: I enabled selinux to make some tests (with enforcing) and now my AWS instance is unable to boot. From the instance screenshot I see that it can’t start …
psql installation on linux requires systemd
Muhammad Imran Tariq asked: I am installing psql on my AWS EMR (EC2 instance) which is Amazon Linux (not Amazon Linux 2). I am getting an error after running the …
What are actual Tesla M60 models used by AWS?
hans asked: Wikipedia says that Tesla M60 has 2×8 GB RAM (whatever it means) and TDP 225–300. I use an EC2 instance g3s.xlarge which is supposed to have a Tesla …
Rails SSL running puma and EC2 AWS
Randall Coding asked: Specs: Rails 4.2.4, Ruby 2.1.9, running puma, EC2 instance in production mode I have an SSL certificate that I want to install on my server but using …
Why are primary network interfaces forced to inherit all the security groups of their EC2 instances?
Alex Johnson asked: I’m testing a virtual load balancer which is running on an EC2 instance. I’d like to be able to alter the setup and test the balancer under …
After changing permissions to home/ec2-user of the main volume I can no longer SSH in even after changing permissions
MistyD asked: AS the title mentions. I was dumb enough to change the permissions of home/ec2-user recursively to 777 after which I could not log in. I then detached the …
Should a detached EBS volume keep charging monthly?
gustavovelascoh asked: First of all, I’m not very used to AWS nor DevOps/admin stuff, but want to learn. So I set up an EC2 instance and attached an EBS volume …