1. 루트 비밀번호 활성화

[ec2-user@ip-172-31-27-175 ~]$ sudo passwd root

Changing password for user root.

New password:

Retype new password:

passwd: all authentication tokens updated successfully.

2. 루트 ssh 접근 활성화

[ec2-user@ip-172-31-27-175 ~]$ sudo vi /etc/ssh/sshd_config

PermitRootLogin yes  <<< 활성화

[ec2-user@ip-172-31-27-175 ~]$ sudo mkdir /root/.ssh

mkdir: cannot create directory ‘/root/.ssh’: File exists

[ec2-user@ip-172-31-27-175 ~]$ sudo cp /home/ec2-user/.ssh/authorized_keys /root/.ssh

[ec2-user@ip-172-31-27-175 ~]$ sudo service sshd restart

Stopping sshd:                                             [  OK  ]

Starting sshd:                                             [  OK  ]

[ec2-user@ip-172-31-27-175 ~]$ whois canvasee.org

3. APM 설치

https://docs.aws.amazon.com/ko_kr/AWSEC2/latest/UserGuide/install-LAMP.html

sudo yum install -y httpd24 php71 mysql56-server php71-mysqlnd

sudo yum install -y php71-gd php71-imap php71-mbstring php71-opcache php71-pdo php71-pecl-apcu

sudo service httpd start

sudo chkconfig httpd on

[root@ip-172-31-27-175 ~]# chkconfig --list httpd

httpd           0:off   1:off   2:on    3:on    4:on    5:on    6:off

> 사용자 그룹 추가.

sudo usermod -a -G apache ec2-user