AWS

EC2:
Login:
1. Copy your .pem file to ~/.ssh.
2. Change permissions to chmod 500 <your_file>.pem
3. Login to your server.

ssh -i /full-path-to/.pem ec2-user@PUBLIC_DNS


INSTALL PHP:

sudo yum install php56

Free Memory Check:
free -m (in MB)

Hard disk capacity Check:
df -h (Human Readable)