ADT在线安装（http://dl-ssl.google.com/android/eclipse 打不开）
很明显，国内网络和谐掉了google这个服务器，能够强制指向下Hosts ，如下是添加内容：
74.125.237.1 dl-ssl.google.com
具体操做方式：
目录：c:\windows\system32\drivers\etc下 找到hosts文件，实际上是一个纯文本的文件，
一、用记事本打开
二、将：74.125.237.1 dl-ssl.google.com 添加至hosts文件最后一行
三、保存关闭Hosts，从新启动eclipse
4. 启动Eclipse，菜单点击进入Help -> Install New Software，在出现的窗口中点击Add按钮，而后在Name中输入你自定义的名称,Location中输入：
http://dl-ssl.google.com/android/eclipse
android
#Google主页
203.208.46.146 www.google.com
#这行是为了方便打开Android开发官网 如今好像不翻q也能够打开
74.125.113.121 developer.android.com
#更新的内容从如下地址下载
203.208.46.146 dl.google.com
203.208.46.146 dl-ssl.google.com
添加以上的网址，再选用http协议，就能够正常的进行更新了。
或者也能够什么都不作，过上一两天可能会恢复正常。
下边贴上使用Google各类服务在修改hosts文件时须要添加的内容。
#Google Service
#Chrome 网上应用
203.208.46.146 chrome.google.com
203.208.46.146 clients0.google.com
203.208.46.146 clients1.google.com
203.208.46.146 clients2.google.com
203.208.46.146 clients3.google.com
203.208.46.146 clients4.google.com
203.208.46.146 www.googleusercontent.com
203.208.46.146 lh0.googleusercontent.com
203.208.46.146 lh1.googleusercontent.com
203.208.46.146 lh2.googleusercontent.com
203.208.46.146 lh3.googleusercontent.com
203.208.46.146 lh4.googleusercontent.com
203.208.46.146 lh5.googleusercontent.com
203.208.46.146 lh6.googleusercontent.com
203.208.46.146 clients1.googleusercontent.com
203.208.46.146 clients2.googleusercontent.com
#网页快照
203.208.46.146 webcache.googleusercontent.com
#Google SSL
203.208.46.146 encrypted.google.com
203.208.46.146 encrypted.google.com.hk
#Google Docs
203.208.46.146 docs.google.com
203.208.46.146 docs0.google.com
203.208.46.146 docs1.google.com
203.208.46.146 docs2.google.com
203.208.46.146 docs3.google.com
203.208.46.146 spreadsheets.google.com
203.208.46.146 spreadsheets0.google.com
203.208.46.146 spreadsheets1.google.com
203.208.46.146 spreadsheets2.google.com
203.208.46.146 spreadsheets3.google.com
#Gmail
203.208.46.146 mail.google.com
203.208.46.146 chatenabled.mail.google.com #Gmail中Gtalk聊天服务
#Google 搜索
203.208.46.146 www.google.com
#Google preview
203.208.46.146 www.googlepreview.com
#Google 翻译
203.208.46.146 translate.google.com
203.208.46.146 translate.googleapis.com
#Google 搜索建议（IE9）
203.208.46.146 clients5.google.com
#Google Code
203.208.46.146 code.google.com
#Picasa 网络相册
203.208.46.146 picasaweb.google.com
203.208.46.146 lh0.ggpht.com
203.208.46.146 lh1.ggpht.com
203.208.46.146 lh2.ggpht.com
203.208.46.146 lh3.ggpht.com
203.208.46.146 lh4.ggpht.com
203.208.46.146 lh5.ggpht.com
203.208.46.146 lh6.ggpht.com
203.208.46.146 lh7.ggpht.com
203.208.46.146 lh8.ggpht.com
203.208.46.146 lh8.ggpht.com
203.208.46.146 lh9.ggpht.com
203.208.46.146 lh6.google.com
#Google 我的资料
203.208.46.146 profiles.google.com
203.208.46.146 browsersync.google.com
#Google+
203.208.46.146 talkgadget.google.com #Google+中的聊天服务
203.208.46.146 ssl.gstatic.com
203.208.46.146 images-pos-opensocial.googleusercontent.com
203.208.46.146 images1-focus-opensocial.googleusercontent.com
203.208.46.146 images2-focus-opensocial.googleusercontent.com
203.208.46.146 images3-focus-opensocial.googleusercontent.com
203.208.46.146 images4-focus-opensocial.googleusercontent.com
203.208.46.146 images5-focus-opensocial.googleusercontent.com
203.208.46.146 images6-focus-opensocial.googleusercontent.com
203.208.46.146 plus.google.com
#Download 下载
203.208.46.146 dl.google.com
203.208.46.146 dl-ssl.google.com
#Groups
203.208.46.146 groups.google.com
#Google URL Shortener
203.208.46.146 goo.gl
#Google App Engine
203.208.46.146 appengine.google.com
#Android Developer
74.125.113.121 developer.android.com
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