<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta name="generator" content="HTML Tidy, see www.w3.org" /> <title>The Secure shell</title> <meta name="GENERATOR" content="Modular DocBook HTML Stylesheet Version 1.7" /> <link rel="HOME" title="Slackware Linux Essentials" href="index.html" /> <link rel="UP" title="Basic Network Commands" href="basic-network-commands.html" /> <link rel="PREVIOUS" title="telnet" href="basic-network-commands-telnet.html" /> <link rel="NEXT" title="email" href="basic-network-commands-email.html" /> <link rel="STYLESHEET" type="text/css" href="docbook.css" /> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> </head> <body class="SECT1" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#840084" alink="#0000FF"> <div class="NAVHEADER"> <table summary="Header navigation table" width="100%" border="0" cellpadding="0" cellspacing="0"> <tr> <th colspan="3" align="center">Slackware Linux Essentials</th> </tr> <tr> <td width="10%" align="left" valign="bottom"><a href="basic-network-commands-telnet.html" accesskey="P">Prev</a></td> <td width="80%" align="center" valign="bottom">Chapter 13 Basic Network Commands</td> <td width="10%" align="right" valign="bottom"><a href="basic-network-commands-email.html" accesskey="N">Next</a></td> </tr> </table> <hr align="LEFT" width="100%" /> </div> <div class="SECT1"> <h1 class="SECT1"><a id="BASIC-NETWORK-COMMANDS-SSH" name="BASIC-NETWORK-COMMANDS-SSH">13.6 The Secure shell</a></h1> <p>Today, secure shell basks in the adoration that <tt class="COMMAND">telnet</tt> once enjoyed. <tt class="COMMAND">ssh</tt>(1) allows one to make a connection to a remote machine and execute programs as if one were physically present; however, <tt class="COMMAND">ssh</tt> encrypts all the data travelling between the two computers so even if others intercept the conversation, they are unable to understand it. A typical secure shell connection follows.</p> <table border="0" bgcolor="#E0E0E0" width="100%"> <tr> <td> <pre class="SCREEN"> <samp class="PROMPT">%</samp> <kbd class="USERINPUT">ssh carrier.lizella.net -l alan</kbd> The authenticity of host 'carrier.lizella.net (192.168.1.253)' can't be established. RSA key fingerprint is 0b:e2:5d:43:4c:39:4f:8c:b9:85:db:b2:fa:25:e9:9d. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'carrier.lizella.net' (RSA) to the list of known hosts. Password: <kbd class="USERINPUT">password</kbd> Last login: Sat Nov 6 16:32:19 2004 from 192.168.1.102 Linux 2.4.26-smp. alan@carrier:~$ <kbd class="USERINPUT">ls -l MANIFEST</kbd> -rw-r--r-- 1 alan users 23545276 2004-10-28 20:04 MANIFEST alan@carrier:~$ <kbd class="USERINPUT">exit</kbd> logout Connection to carrier.lizella.net closed. </pre> </td> </tr> </table> <p>There you see me making an ssh connection to <tt class="HOSTID">carrier.lizella.net</tt>, and checking the permissions on the <tt class="FILENAME">MANIFEST</tt> file.</p> </div> <div class="NAVFOOTER"> <hr align="LEFT" width="100%" /> <table summary="Footer navigation table" width="100%" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="33%" align="left" valign="top"><a href="basic-network-commands-telnet.html" accesskey="P">Prev</a></td> <td width="34%" align="center" valign="top"><a href="index.html" accesskey="H">Home</a></td> <td width="33%" align="right" valign="top"><a href="basic-network-commands-email.html" accesskey="N">Next</a></td> </tr> <tr> <td width="33%" align="left" valign="top"><tt class="COMMAND">telnet</tt></td> <td width="34%" align="center" valign="top"><a href="basic-network-commands.html" accesskey="U">Up</a></td> <td width="33%" align="right" valign="top">email</td> </tr> </table> </div> </body> </html>