【环境设置】debian update失败，debianupdate

【环境设置】debian update失败，debianupdate

症状

之前一直使用的debian环境，今天突然aptitude update失败，错误信息如下：

root@ Tue Oct 28 20:26:35 ~
$  aptitude update
Err http://mirrors.163.com wheezy Release.gpg
  Could not resolve 'mirrors.163.com'
Err http://mirrors.163.com wheezy-proposed-updates Release.gpg
  Could not resolve 'mirrors.163.com'
Err http://mirrors.163.com wheezy-updates Release.gpg
  Could not resolve 'mirrors.163.com'
Err http://mirrors.163.com wheezy/updates Release.gpg
  Could not resolve 'mirrors.163.com'
W: Failed to fetch http://mirrors.163.com/debian/dists/wheezy/Release.gpg: Could not resolve 'mirrors.163.com'
W: Failed to fetch http://mirrors.163.com/debian/dists/wheezy-proposed-updates/Release.gpg: Could not resolve 'mirrors.163.com'
W: Failed to fetch http://mirrors.163.com/debian/dists/wheezy-updates/Release.gpg: Could not resolve 'mirrors.163.com'
W: Failed to fetch http://mirrors.163.com/debian-security/dists/wheezy/updates/Release.gpg: Could not resolve 'mirrors.163.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

但网络是通的：

root@ Tue Oct 28 20:31:54 ~
$   ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_req=2 ttl=128 time=37.5 ms
64 bytes from 8.8.8.8: icmp_req=3 ttl=128 time=45.9 ms
64 bytes from 8.8.8.8: icmp_req=4 ttl=128 time=36.9 ms
^C
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 3 received, 25% packet loss, time 3010ms
rtt min/avg/max/mdev = 36.975/40.156/45.922/4.084 ms

root@ Tue Oct 28 20:39:38 ~
$  

环境说明

系统版本：

root@ Mon Oct 27 17:10:30 /usr/share/vim/vim73/colors
$  uname -a
Linux Ulric 3.2.0-4-686-pae #1 SMP Debian 3.2.63-2 i686 GNU/Linux

软件源

root@ Tue Oct 28 20:26:45 ~
$   cat /etc/apt/sources.list
#deb http://ftp.debian.org/debian wheezy main contrib non-free
#deb-src http://ftp.debian.org/debian wheezy main contrib non-free

deb http://mirrors.163.com/debian wheezy main non-free contrib  
deb-src http://mirrors.163.com/debian wheezy main non-free contrib  
deb http://mirrors.163.com/debian wheezy-proposed-updates main contrib non-free  
deb-src http://mirrors.163.com/debian wheezy-proposed-updates main contrib non-free  
deb http://mirrors.163.com/debian wheezy-updates main contrib non-free  
deb-src http://mirrors.163.com/debian wheezy-updates main contrib non-free  
deb http://mirrors.163.com/debian-security wheezy/updates main contrib non-free   
deb-src http://mirrors.163.com/debian-security wheezy/updates main contrib non-free  

解决方案：

经过baidu的帮助，终于找到原因了：

http://tieba.baidu.com/p/2110278694

今天早上开了EasyConnect(http://baike.baidu.com/view/6614495.htm?fr=aladdin)，用来跳转到其它服务器。个人猜测是代理导致本地的公钥验证失败，从而导致update失败。

把EasyConnect关闭后，就顺利update了。