====== Chave SSH ======
<code bash>
$ ssh-keygen -t ed25519
Generating public/private ed25519 key pair.
Enter file in which to save the key (/home/gean/.ssh/id_ed25519):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/gean/.ssh/id_ed25519
Your public key has been saved in /home/gean/.ssh/id_ed25519.pub
The key fingerprint is:
SHA256:LRfyaMBCc+nFBbvUZw/4BIFxA+LeboyAByDqEl0zCXw gean@inspiron-15-5510
The key's randomart image is:
+--[ED25519 256]--+
|o...*.oo+**.     |
|oo.oEB..++ +     |
|o o...+.+ + =    |
|.. o o.+ * * o   |
|... o . S + . .  |
|.  . . = o       |
|      . +        |
|       .         |
|                 |
+----[SHA256]-----+
</code>

<code bash>
$ ls ~/.ssh/id_*
/home/gean/.ssh/id_ed25519  /home/gean/.ssh/id_ed25519.pub
</code>

<code bash>
$ ssh-copy-id 192.168.0.6
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/home/gean/.ssh/id_ed25519.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
gean@192.168.0.6's password:

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh '192.168.0.6'"
and check to make sure that only the key(s) you wanted were added.
</code>

<code>
$ ssh 192.168.0.6
Last failed login: Sat Aug 19 19:32:51 -03 2023 from 192.168.0.2 on ssh:notty
There were 4 failed login attempts since the last successful login.
Last login: Sat Aug 19 19:26:34 2023 from 192.168.0.2
[gean@ol9-kvm ~]$
</code>