Fedora 21
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SSH Server : Password Authentication
2014/12/10
 
Configure SSH Server to login to a server from remote computer. SSH uses 22/TCP port.
[1] OpenSSH is already installed by default even if you installed Fedora with "Minimal Install", so it's not necessarry to install new packages. You can login with Password Authentication by default, but change some settings for security like follows.
[root@dlp ~]#
vi /etc/ssh/sshd_config
# line 49: uncomment and change ( prohibit root login remotely )

PermitRootLogin
no
# line 78: uncomment

PermitEmptyPasswords no
PasswordAuthentication yes
[root@dlp ~]#
systemctl restart sshd

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

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

The authenticity of host 'dlp.srv.world (127.0.53.53)' can't be established.
ECDSA key fingerprint is xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:60:90:d8.
Are you sure you want to continue connecting (yes/no)?
yes

Warning: Permanently added 'dlp.srv.world' (ECDSA) to the list of known hosts.
fedora@dlp.srv.world's password:
# password of the user

[fedora@dlp ~]$
# just logined

[4] It's possbile to execute commands on remote Host with SSH like follows.
# for example, execute "cat /etc/passwd"

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

fedora@dlp.srv.world's password:
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
...
...
tcpdump:x:72:72::/:/sbin/nologin
fedora:x:1000:1000:fedora:/home/fedora:/bin/bash
Configure SSH Client : Windows
 
Configure SSH Client on Windows.
[5] Get a software which you can login with SSH from Windows clients. This example shows to use Putty. Install and start it and input your server's IP address and Click 'Open' button like follows.
[6] After succeccing authentication, it's possible to login like follows.
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