Telnet port 80 whilst specifying Hostname

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Telnetting to port 80 is very useful in diagnosing whether or not a website is running in more discrete terms than using a browser however if you need to specify a specific hostname telnet cannot do this of course as there is no ability to mention a hostname in the GET statement. Curl can do this of course but if you are on a machine that does have it installed you can achieve this by using the HTTP 1.1 syntax within telnet.

Example

This example views the 301 redirect from goodacre.name to ben.goodacre.name :

user@host:~$ telnet ben.goodacre.name 80
Trying 67.223.225.228...
Connected to goodacre.name.
Escape character is '^]'.
GET / HTTP/1.1
Host: goodacre.name

HTTP/1.0 301 Moved Permanently
Date: Mon, 19 Apr 2010 10:49:13 GMT
Server: Apache/2.2.4 (Ubuntu) PHP/5.2.3-1ubuntu6.3
Location: http://ben.goodacre.name/
Content-Length: 332
Content-Type: text/html; charset=iso-8859-1
X-Cache: MISS from localhost
X-Cache-Lookup: MISS from localhost:80
Via: 1.0 localhost (squid/3.0.PRE6)
Connection: close

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>301 Moved Permanently</title>
</head><body>
<h1>Moved Permanently</h1>
<p>The document has moved <a href="http://ben.goodacre.name/">here</a>.</p>
<hr>
<address>Apache/2.2.4 (Ubuntu) PHP/5.2.3-1ubuntu6.3 Server at goodacre.name Port 80</address>
</body></html>
Connection closed by foreign host.

Note: Enter must be pressed twice after specifying the Host: domain.com line.

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