Hosts文件分析，附上原版文件

tetsai

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Windows系统hosts位于 C:\Windows\System32\drivers\etc\hosts
Android（安卓）系统hosts位于 /system/etc/hosts
Mac（苹果电脑）系统hosts跟Linux一样位于 /etc/hosts
iPhone（iOS）系统hosts跟Linux Mac一样位于 /etc/hosts
Linux系统hosts位于 /etc/hosts

注意：hosts文件属于系统核心文件之一，所以Windows用户必须用***身份打开才能修改保存，如果遇到无法保存，请右键文件hosts并找到“属性” -> “安全”，然后选择你登陆的用户名，最后点击编辑，勾选“写入”即可。

注意*2：hosts被修改可能导致系统异常，博主搞Linux时手滑删了hosts，结果系统变得非常非常卡，经常找不到主机“debian”

Android（安卓）必须Root才能修改，Root Explorer管理器或ES文件浏览器装载/system可写状态，找到/system/etc/hosts的文件，使用文本编辑器打开编辑后保存。

Linux系统使用Root权限vi编辑

而iPhone、iPad也必须越狱才能修改！Windows系统跟苹果系统的hosts文件文本编码和换行符格式一样，而Android（安卓）则不一样，这点你需要注意。

windows：

# 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

Mac、iPhone、iPad原版hosts文件：

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::10 localhost

Linux系列我就不列出了，因为每个繁生版本都不一样，而且用Linux的人一般不是小白。