Fedora 32
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OpenSSH : Password Authentication2020/05/01

Configure SSH Server to operate server from remote computers.
[1] OpenSSH is already installed by default even if you installed Fedora with Minimal Install, so it does not need to install new packages. You can login with Password Authentication by default.
[root@dlp ~]#
systemctl status sshd

*  sshd.service - OpenSSH server daemon
     Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor pres>
     Active: active (running) since Thu 2020-04-30 23:37:36 EDT; 8min ago
       Docs: man:sshd(8)
   Main PID: 807 (sshd)
      Tasks: 1 (limit: 4665)
     Memory: 2.5M
        CPU: 14ms
     CGroup: /system.slice/sshd.service
             +- 807 /usr/sbin/sshd -D -oCiphers=aes256-gcm@openssh.com,chacha20->
[2] If Firewalld is running, allow SSH service. SSH uses [22/TCP]. (Generally it is allowed by default)
[root@dlp ~]#
firewall-cmd --add-service=ssh --permanent

[root@dlp ~]#
firewall-cmd --reload

SSH Client : Fedora
Configure SSH Client for Fedora.
[3] Install SSH Client.
[root@client ~]#
dnf -y install openssh-clients
[4] Connect to SSH server with any common user.
# sssh [username@(hostname or IP address)]

[root@client ~]#
ssh fedora@dlp.srv.world

The authenticity of host 'dlp.srv.world (' can't be established.
ECDSA key fingerprint is SHA256:WMCgZZSX9WHA+CCaEM3LqQezWKMsSq+AmsvdFzHWdVQ.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'dlp.srv.world,' (ECDSA) to the list of known hosts.
fedora@dlp.srv.world's password:
Web console: https://dlp.srv.world:9090/ or

[fedora@dlp ~]$   # logined
[5] It's possbile to execute commands on remote Host with SSH like follows.
# for example, run [cat /etc/passwd]

[fedora@client ~]$
ssh fedora@dlp.srv.world "cat /etc/passwd"

fedora@dlp.srv.world's password:
dnsmasq:x:989:989:Dnsmasq DHCP and DNS server:/var/lib/dnsmasq:/usr/sbin/nologin
SSH Client : Windows #1
Configure SSH Client for Windows.
Download a SSH Client software for Windows.
On this example, it shows Putty (www.chiark.greenend.org.uk/~sgtatham/putty/).
Install and start Putty, then Input your server's Hostname or IP address on [Host name] field and Click [Open] button to connect.
[7] After successing authentication, it's possible to login and operate Fedora server from remote computer.
SSH Client : Windows #2
[8] If you are using Windows 10 version 1803 or later, OpenSSH Client has been implemented as a Windows feature, so it's possible to use [ssh] command on PowerShell or Command Prompt without Putty or other 3rd party SSH softwares. It's the same usage because it's the OpenSSH Client, refer to [4], [5] section.
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