http://121.199.111.177 http://121.199.111.177
我用win7(IE8)访问这个网址，没问题，可以获取页面。
但如果我使用 wget，或者在 Ubuntu 桌面下使用 Chrome 或 Firefox，我将无法获取任何内容。
像这样：
root@ubuntu:~# wget 121.199.111.177
--07:57:52-- http://121.199.111.177/
=> `index.html.1'
Connecting to 121.199.111.177:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers.
Retrying.
我尝试使用用户代理，但仍然不起作用：
root@ubuntu:~# wget --user-agent="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)" http://121.199.111.177/
--08:08:04-- http://121.199.111.177/
=> `index.html.1'
Connecting to 121.199.111.177:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers.
Retrying.
为什么？如何使用 wget 获取此页面？
错误代码 500 是内部服务器错误。 Wget 在标头中读取此错误代码，甚至不费心获取内容。所以服务器有问题需要修复。
$ wget -S http://121.199.111.177/
--2010-12-05 02:18:32-- http://121.199.111.177/
Connecting to 121.199.111.177:80... connected.
HTTP request sent, awaiting response...
HTTP/1.1 500 Internal Server Error
Cache-Control: private
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
X-UA-Compatible: IE=EmulateIE7
Date: Sun, 05 Dec 2010 00:19:02 GMT
Connection: keep-alive
Content-Length: 4722
2010-12-05 02:18:49 ERROR 500: Internal Server Error.
一些telnet调试与上面一致：
$ telnet 121.199.111.177 80
Trying 121.199.111.177...
Connected to 121.199.111.177.
Escape character is '^]'.
GET / HTTP/1.0
HTTP/1.1 500 Internal Server Error
Cache-Control: private
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
X-UA-Compatible: IE=EmulateIE7
Date: Sun, 05 Dec 2010 00:36:02 GMT
Connection: close
Content-Length: 4722
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>IIS 7.5 详细错误 - 500.19 - Internal Server Error</title>
<style type="text/css">
<!--
body{margin:0;font-size:.Connection closed by foreign host.
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