서버1, Host name : centos1
서버2, Host name : centos2
root@centos1 poc]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): enter
Enter passphrase (empty for no passphrase): enter
Enter same passphrase again: enter
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:Ee1q0XAZeJgB98aa4AkqXEymxQ2m1pqxJksgOj4Ef9Q root@centos1.demo.netapp.com
The key's randomart image is:
+---[RSA 2048]----+
| .*o ..+*.o |
| X. o .=+= |
|+= +o E .*+ |
|B.*o o o.=o |
|=Oo . o So |
|*+ . o |
|.o . |
| . |
| |
+----[SHA256]-----+
[root@centos1 poc]# ls /root/.ssh
id_rsa id_rsa.pub known_hosts
[root@centos2 poc]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): enter
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase): enter
Enter same passphrase again: enter
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:KFpO3OVVeFYBJ5Xd3Z6IzBZvzIlXiHUQ830OBeDz5FE root@centos2.demo.netapp.com
The key's randomart image is:
+---[RSA 2048]----+
| .BXX*E|
| .=o+=+*|
| . +oX Bo+|
| . . + . * & =o|
| = o S . o o .|
| = . |
| . . |
| |
| |
+----[SHA256]-----+
[root@centos1 .ssh]# scp id_rsa.pub centos2:/root/.ssh/authorized_keys
[root@centos1 .ssh]# ssh centos2
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