Amazon Cloud HowTo - Linux / Unix Q & A from nixCraft

Amazon Linux AMI Install Linux, nginx, MySQL, PHP (LEMP)

last updated October 15, 2019 in Amazon Cloud Computing, Linux, MySQL, Nginx, PHP

How do I install Linux, nginx, MySQL, PHP (LEMP) stack on Amazon Linux AMI running on AWS?

Set Up a Basic Iptables Firewall on Amazon Linux AMI

last updated October 10, 2019 in Amazon Cloud Computing, CentOS, Iptables, Linux, Security

How do I set up a basic iptables firewall on Amazon Linux AMI running on EC2 or Lightsail instance?

How to install htop on Amazon Linux AMI

last updated November 22, 2019 in Amazon Cloud Computing, Linux, Package Management

I am a new user of Amazon Linux AMI operating system. How do I install htop on Amazon Linux AMI using the yum command?

Amazon Linux AMI install mysql client programs for RDS

last updated October 9, 2019 in Amazon Cloud Computing, CentOS, MySQL, Package Management

How do I install mysql command for management Amazon RDS or Managed Databases for Amazon Lightsail on Amazon Linux AMI?

SSH: WARNING: UNPROTECTED PRIVATE KEY FILE! Error and Solution

last updated January 26, 2017 in Amazon Cloud Computing, Linux, Mac OS X, OpenBSD, Suse, Troubleshooting, UNIX

I‘m setting up server on an Amazon EC2 compute instance powered by Suse Enterprise Linux server. I am using the following command to login into the my EC2 compute from OS X/Ubuntu desktop:

ssh -i suse-ec2-server-jp.pem root@ec2-xx-yy-zzz-yyy.compute-1.amazonaws.com

I am getting the following error:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: UNPROTECTED PRIVATE KEY FILE! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Permissions 0440 for 'suse-ec2-server-jp.pem' are too open. It is recommended that your private key files are NOT accessible by others. This private key will be ignored. bad permissions: ignore key: suse-ec2-server-jp.pem Password:

How do I fix this problem and login using ssh command?