OpenSSH : Password Authentication2018/11/02 |
Configure SSH Server to login to a server from remote computer.
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[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 46: change ( prohibit root login remotely ) PermitRootLogin no
systemctl restart sshd |
[2] | If Firewalld is running, allow SSH service. SSH uses 22/TCP. |
[root@dlp ~]# firewall-cmd --add-service=ssh --permanent success [root@dlp ~]# firewall-cmd --reload success |
SSH Client : Fedora
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Configure SSH Client for Fedora.
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[3] | Install SSH Client. |
[root@client ~]# dnf -y install openssh-clients
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[4] | 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 (10.0.0.30)' can't be established. ECDSA key fingerprint is SHA256:eUruPUkaIepbGYxmEbhry/4T1i7uWj2e9Ul23X/cNiw. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'dlp.srv.world,10.0.0.30' (ECDSA) to the list of known hosts. fedora@dlp.srv.world's password: Web console: https://dlp.srv.world:9090/ or https://10.0.0.249:9090/ [fedora@dlp ~]$ # just logined |
[5] | It's possbile to execute commands on remote Host with SSH like follows. |
# for example, run [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 |
SSH Client : Windows #1
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Configure SSH Client on Windows.
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[6] | 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. |
[7] | After successing authentication, it's possible to login like follows. |
SSH Client : Windows #2
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[8] | If your Windows is Windows 10 Version 1803 or later, OpenSSH Client has been implemented as a Windows feature, so it's possible to use ssh command on command prompt without Putty and other SSH software. |
[9] | It's the same usage because it's the OpenSSH Client, refer to [3], [4] section. |
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