我访问了 www.facebook.com，但出现了一个完全不同的网站。

Question

我要去 www.facebook.com，但出现的网站完全不同。这发生在 Chrome 6+、IE9 和 FF 3+​​ 上。会发生什么？这是安全风险吗？

Facebook 运行得很好，然后突然发生了这种情况。

更新：同样的问题出现在我的上网本上。

更新 2：当我访问http://69.63.189.11/ 时，它工作正常。所以... DNS 问题？我该如何解决？

更新 3：检查主机文件：

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#   127.0.0.1       localhost
#   ::1             localhost

好像没改过。

Answer 1

病毒/木马/蠕虫或您的 DNS 缓存已被处理。

Answer 2

检查您的主机文件

C:\windows\system32\drivers\etc\

我想知道是否有人更改了那里的条目，可能是在恶作剧。