https://jeltsch.org/en/tags/sshd/Recent content in Sshd on Michael’s DomainHugoen-usCopyright © 2002 - 2026 Michael Jeltsch.Fri, 24 Jul 2026 00:18:18 +0300https://jeltsch.org/en/how_to_enable_passwordless_logins_to_a_server/Wed, 24 Jul 2019 00:00:00 +0000https://jeltsch.org/en/how_to_enable_passwordless_logins_to_a_server/<ol> <li>Enable root login with password on the server. To do so, you need to edit the file /etc/ssh/sshd_config.Modify the lines starting with &ldquo;PermitRootLogin&rdquo; like this:#PermitRootLogin prohibit-passwordPermitRootLogin yes</li> <li>Restart the sshd server:sudo systemctl restart sshd</li> <li>On the client, copy the public key files to the server with the ssh-copy-id command:ssh-copy-id root@server</li> <li>On the server, disable root login with password and enable root login with public key authentication:PermitRootLogin prohibit-password#PermitRootLogin yes</li> </ol>https://jeltsch.org/en/how_to_start_openvpn_or_ssh_server_under_ubuntu_16_04_and_18_04/Sat, 03 Sep 2016 00:00:00 +0000https://jeltsch.org/en/how_to_start_openvpn_or_ssh_server_under_ubuntu_16_04_and_18_04/<p><strong>OpenVPN</strong><code>sudo systemctl start openvpn@client</code>The &ldquo;client&rdquo; is derived from the configuration file name (/etc/openvpn/client.conf). If your configuration file is server.conf, the command needs to be<code>sudo systemctl start openvpn@server</code>When you want the service to start up automatically during system boot, you issue:<code>sudo systemctl enable openvpn@server</code><strong>Templated versus non-templated services</strong>OpenVPN is a so-called &ldquo;templated&rdquo; service (it needs a configuration file when being invoked). In contrast to this, the ssh server is a non-templated service. Hence the command is simpler:<code>sudo systemctl start sshd</code></p>