Create multiple Linux accounts on Amazon EC2

On LOCAL:

[pwang@r710 .ssh]$ ssh-keygen -b 1024 -f <USER_ACCOUNT> -t dsa
Generating public/private dsa key pair.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in <<USER_ACCOUNT>.
Your public key has been saved in <USER_ACCOUNT>.pub.
The key fingerprint is:
ff:85:c1:4f:8c:26:54:2f:62:19:81:b7:9a:71:db:19 pwang@r710
The key's randomart image is:
+--[ DSA 1024]----+
|         .o..    |
|        . .+ .   |
|         .=.. .  |
|        .oooE+   |
|        S=.o=oo  |
|        o..oo=   |
|          . . o  |
|           . .   |
|            .    |
+-----------------+

[pwang@r710 .ssh]$ chmod 600 <USER_ACCOUNT>.pub

(It is the publick key which will be copied into authorized_file on EC2)

[pwang@r710 .ssh]$ chmod 600 <USER_ACCOUNT>

(It is the private key)

On AMAZON:

as root:

# useradd <USER_ACCOUNT>

# su - <USER_ACCOUNT>

# mkdir .ssh && chmod 700 .ssh

# cd .ssh

# vi authorized_keys

Copy and pasted the public key created on local into authorized_keys

From local:

[pwang@r710 .ssh]$ ssh -i <USER_ACCOUNT_PRIVATE> pwang@AMAZON_EC2

Last login: Mon Jan 22 22:39:38 2018

[pwang@AMAZON ~]$