AWS

EC2 Configure Instance:
- One default VPC has been created for each region you use.
- One subnet corresponds to one availability zone.
- Enable CloudWatch detailed monitoring (5-min to 1-min; additional charge)
- A security group is a virtual firewall (DMZ)
  - Example name: "MyWebDMZ"
- ssh (details here)
  - Change permit for generated ssh key: $ chmod 400 [pem file], e.g., $ chmod 400 .ssh/MyEC2KeyPair.pem
  - ssh command:
    - $ ssh [user name]@[Public IP] -i [pem file], e.g.: ssh ec2-user@52.91.36.218 -i .ssh/MyEC2KeyPair.pem
    - $ ssh [user name]@[Public DNS] -i [pem file], e.g., ssh ec2-user@ec2-52-91-36-218.compute-1.amazonaws.com -i .ssh/MyEC2KeyPair.pem
  - User name:
    - For Amazon Linux, the user name is ec2-user.
    - For RHEL, the user name is ec2-user or root.
    - For Ubuntu, the user name is ubuntu or root.
    - For Centos, the user name is centos.
    - For Fedora, the user name is ec2-user.
    - For SUSE, the user name is ec2-user or root.
    - Otherwise, if ec2-user and root don't work, check with your AMI provider.
Cloud History
- Data Center
- IAAS (ec2)
- PAAS (elastic beanstalk)
- Containers (docker)
- Serverless (lambda)
Example run-instances command: aws ec2 run-instances --image-id ami-c58c1dd3 --count 1 --instance-type t2.micro --key-name MyEC2KeyPair --security-group-ids sg-c82ffeb6 --subnet-id subnet-cccf3784

#!/bin/bash
yum update -y
yum install httpd -y
service httpd start
chkconfig httpd on
aws s3 cp s3://mywebsitebucket/index.html /var/www/html/

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