https://wiki.virusstyle.synology.me/index.php?action=history&feed=atom&title=Ubuntu%2FLinux%2FSSH_Login_Without_Password 2026-04-21T16:05:18Z Revision history for this page on the wiki MediaWiki 1.43.5 https://wiki.virusstyle.synology.me/index.php?title=Ubuntu/Linux/SSH_Login_Without_Password&diff=107&oldid=prev 2026-04-16T08:41:33Z

<p>1 revision imported</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:41, 16 April 2026</td> </tr><tr><td colspan="4" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr> <!-- diff cache key mediawiki:diff:1.41:old-106:rev-107 --> </table>

Kaspars https://wiki.virusstyle.synology.me/index.php?title=Ubuntu/Linux/SSH_Login_Without_Password&diff=106&oldid=prev 2018-09-21T10:40:54Z

<p></p> <p><b>New page</b></p><div>&lt;div class=&quot;mw-parser-output&quot;&gt;&amp;nbsp;&lt;/div&gt; &lt;div class=&quot;mw-parser-output&quot;&gt;&amp;nbsp;&lt;/div&gt;<br /> <br /> &lt;div class=&quot;mw-parser-output&quot;&gt;<br /> === Step 1: Create public and private keys using ssh-key-gen on local-host ===<br /> &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;jsmith@local-host$ &lt;span style=&quot;color:#FF0000;&quot;&gt;[Note: You are on local-host here]&lt;/span&gt;&lt;/div&gt; &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;&amp;nbsp;jsmith@local-host$ &#039;&#039;&#039;ssh-keygen&#039;&#039;&#039;&lt;br/&gt; Generating public/private rsa key pair.&lt;br/&gt; Enter file in which to save the key (/home/jsmith/.ssh/id_rsa): &lt;span style=&quot;color:#FF0000;&quot;&gt;[Enter key]&lt;/span&gt;&lt;br/&gt; Enter passphrase (empty for no passphrase): &lt;span style=&quot;color:#FF0000;&quot;&gt;[Press enter key]&lt;/span&gt;&lt;br/&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp; Enter same passphrase again: &lt;span style=&quot;color:#FF0000;&quot;&gt;[Pess enter key]&lt;/span&gt;&lt;br/&gt; Your identification has been saved in /home/jsmith/.ssh/id_rsa.&lt;br/&gt; &amp;nbsp; Your public key has been saved in /home/jsmith/.ssh/id_rsa.pub.&lt;br/&gt; The key fingerprint is:&lt;br/&gt; 33:b3:fe:af:95:95:18:11:31:d5:de:96:2f:f2:35:f9&amp;nbsp; jsmith@local-host&lt;/div&gt; <br /> &amp;nbsp;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;mw-parser-output&quot;&gt;<br /> === Step 2: Copy the public key to remote-host using ssh-copy-id ===<br /> &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;jsmith@local-host$ &#039;&#039;&#039;ssh-copy-id -i ~/.ssh/id_rsa.pub remote-host&#039;&#039;&#039;&lt;br/&gt; jsmith@remote-host&#039;s password:&lt;br/&gt; Now try logging into the machine, with &quot;ssh&amp;nbsp; &#039;remote-host&#039;&quot;, and check in:&lt;/div&gt; &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;.ssh/authorized_keys&lt;/div&gt; &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;to make sure we haven&#039;t added extra keys that you weren&#039;t expecting.&lt;/pre&gt;&lt;/div&gt; &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;&#039;&#039;&#039;Note:&#039;&#039;&#039;&amp;nbsp;ssh-copy-id&amp;nbsp;&#039;&#039;&#039;appends&#039;&#039;&#039;&amp;nbsp;the keys to the remote-host’s .ssh/authorized_key.&lt;/div&gt; &lt;/div&gt;<br /> <br /> &lt;div class=&quot;mw-parser-output&quot;&gt;<br /> &lt;div class=&quot;mw-parser-output&quot;&gt;&lt;div class=&quot;mw-parser-output&quot;&gt;<br /> === Step 3: Login to remote-host without entering the password ===<br /> &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;jsmith@local-host$ &#039;&#039;&#039;ssh remote-host&#039;&#039;&#039;&lt;br/&gt; Last login: Sun Nov 16 17:22:33 2008 from 192.168.1.2&lt;br/&gt; &lt;span style=&quot;color:#FF0000;&quot;&gt;[Note: SSH did not ask for password.]&lt;/span&gt;&lt;/div&gt; &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;jsmith@remote-host$ &lt;span style=&quot;color:#FF0000;&quot;&gt;[Note: You are on remote-host here]&lt;/span&gt;&lt;/div&gt; &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;jsmith@local-host$ &#039;&#039;&#039;ssh-copy-id -i remote-host&#039;&#039;&#039;&lt;br/&gt; jsmith@remote-host&#039;s password:&lt;br/&gt; Now try logging into the machine, with &quot;ssh &#039;remote-host&#039;&quot;, and check in:&lt;br/&gt; .ssh/authorized_keys&lt;/div&gt; &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;to make sure we haven&#039;t added extra keys that you weren&#039;t expecting.&lt;br/&gt; &lt;span style=&quot;color:#FF0000;&quot;&gt;[Note: This has added the key displayed by ssh-add -L]&lt;/span&gt;&lt;/div&gt; &lt;div style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;Step 4: Fire up a text editor and point it to this file:&lt;/div&gt; &lt;div class=&quot;_&quot; style=&quot;background:#eee;border:1px solid #ccc;padding:5px 10px;&quot;&gt;~/.ssh/config&lt;/div&gt; &lt;/div&gt; <br /> [[File:Config-file.png]]<br /> &lt;/div&gt;</div>

Kaspars