diff options
Diffstat (limited to 'slackbook/html/basic-network-commands-telnet.html')
| -rw-r--r-- | slackbook/html/basic-network-commands-telnet.html | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/slackbook/html/basic-network-commands-telnet.html b/slackbook/html/basic-network-commands-telnet.html deleted file mode 100644 index 736a2648..00000000 --- a/slackbook/html/basic-network-commands-telnet.html +++ /dev/null @@ -1,173 +0,0 @@ -<!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>telnet</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="finger" href="basic-network-commands-finger.html" /> -<link rel="NEXT" title="The Secure shell" href="basic-network-commands-ssh.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-finger.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-ssh.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-TELNET" -name="BASIC-NETWORK-COMMANDS-TELNET">13.5 <tt class="COMMAND">telnet</tt></a></h1> - -<p>Someone once stated that <tt class="COMMAND">telnet</tt>(1) was the coolest thing he -had ever seen on computers. The ability to remotely log in and do stuff on another -computer is what separates Unix and Unix-like operating systems from other operating -systems.</p> - -<p><tt class="COMMAND">telnet</tt> allows you to log in to a computer, just as if you -were sitting at the terminal. Once your username and password are verified, you are given -a shell prompt. From here, you can do anything requiring a text console. Compose email, -read newsgroups, move files around, and so on. If you are running X and you <tt -class="COMMAND">telnet</tt> to another machine, you can run X programs on the remote -computer and display them on yours.</p> - -<p>To login to a remote machine, use this syntax:</p> - -<table border="0" bgcolor="#E0E0E0" width="100%"> -<tr> -<td> -<pre class="SCREEN"> -<samp class="PROMPT">%</samp> <kbd class="USERINPUT">telnet <<var -class="REPLACEABLE">hostname</var>></kbd> -</pre> -</td> -</tr> -</table> - -<p>If the host responds, you will receive a login prompt. Give it your username and -password. That's it. You are now at a shell. To quit your telnet session, use either the -<tt class="COMMAND">exit</tt> command or the <tt class="COMMAND">logout</tt> command.</p> - -<div class="WARNING"> -<table class="WARNING" width="100%" border="0"> -<tr> -<td width="25" align="CENTER" valign="TOP"><img src="./imagelib/admon/warning.png" -hspace="5" alt="Warning" /></td> -<td align="LEFT" valign="TOP"> -<p><tt class="COMMAND">telnet</tt> does not encrypt the information it sends. Everything -is sent in plain text, even passwords. It is not advisable to use <tt -class="COMMAND">telnet</tt> over the Internet. Instead, consider the <tt -class="COMMAND">Secure Shell</tt>. It encrypts all traffic and is available for free.</p> -</td> -</tr> -</table> -</div> - -<div class="SECT2"> -<h2 class="SECT2"><a id="AEN4593" name="AEN4593">13.5.1 The other use of telnet</a></h2> - -<p>Now that we have convinced you not to use the telnet protocol anymore to log into a -remote machine, we'll show you a couple of useful ways to use <tt -class="COMMAND">telnet</tt>.</p> - -<p>You can also use the <tt class="COMMAND">telnet</tt> command to connect to a host on a -certain port.</p> - -<table border="0" bgcolor="#E0E0E0" width="100%"> -<tr> -<td> -<pre class="SCREEN"> -<samp class="PROMPT">%</samp> <kbd class="USERINPUT">telnet <<var -class="REPLACEABLE">hostname</var>> [port]</kbd> -</pre> -</td> -</tr> -</table> - -<p>This can be quite handy when you quickly need to test a certain service, and you need -full control over the commands, and you need to see what exactly is going on. You can -interactively test or use an SMTP server, a POP3 server, an HTTP server, etc. this -way.</p> - -<p>In the next figure you'll see how you can <tt class="COMMAND">telnet</tt> to a HTTP -server on port 80, and get some basic information from it.</p> - -<div class="FIGURE"><a id="FIG-BASIC-NETWORK-COMMANDS-TELNET-WEB" -name="FIG-BASIC-NETWORK-COMMANDS-TELNET-WEB"></a> -<p><b>Figure 13-1. Telnetting to a webserver</b></p> - -<table border="0" bgcolor="#E0E0E0" width="100%"> -<tr> -<td> -<pre class="SCREEN"> -<samp class="PROMPT">%</samp> <kbd class="USERINPUT">telnet store.slackware.com 80</kbd> -Trying 69.50.233.153... -Connected to store.slackware.com. -Escape character is '^]'. -HEAD / HTTP/1.0 - -HTTP/1.1 200 OK -Date: Mon, 25 Apr 2005 20:47:01 GMT -Server: Apache/1.3.33 (Unix) mod_ssl/2.8.22 OpenSSL/0.9.7d -Last-Modified: Fri, 18 Apr 2003 10:58:54 GMT -ETag: "193424-c0-3e9fda6e" -Accept-Ranges: bytes -Content-Length: 192 -Connection: close -Content-Type: text/html - -Connection closed by foreign host. -<samp class="PROMPT">%</samp> -</pre> -</td> -</tr> -</table> -</div> - -<p>You can do the same for other plain-text protocols, as long as you know what port to -connect to, and what the commands are.</p> -</div> -</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-finger.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-ssh.html" -accesskey="N">Next</a></td> -</tr> - -<tr> -<td width="33%" align="left" valign="top"><tt class="COMMAND">finger</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">The Secure shell</td> -</tr> -</table> -</div> -</body> -</html> - |