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sudo apt-get update 之后，出现下面的错误阿？怎么办呢？
Err http://security.ubuntu.com breezy-security Release.gpg
Could not connect to security.ubuntu.com:80 (82.211.81.138). - connect (111 Connection refused)
Err http://archive.ubuntu.com breezy-updates Release.gpg
Could not connect to archive.ubuntu.com:80 (195.248.90.38). - connect (111 Connection refused)
Err http://archive.ubuntu.com breezy Release.gpg
Could not connect to archive.ubuntu.com:80 (195.248.90.38). - connect (111 Connection refused)
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/ ... elease.gpg Could not connect to archive.ubuntu.com:80 (195.248.90.38). - connect (111 Connection refused)
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/ ... elease.gpg Could not connect to archive.ubuntu.com:80 (195.248.90.38). - connect (111 Connection refused)
Failed to fetch http://security.ubuntu.com/ubuntu/dists ... elease.gpg Could not connect to security.ubuntu.com:80 (82.211.81.138). - connect (111 Connection refused)
Reading package lists... Done

你的是breezy么？
能上网么？

什么是breezy啊？我不知道啊，我还用了另外一种方法不是breezy的，但是也是同样的错误。
我把网址输在浏览器上，网络是可以连上的，不知道为什么啊？please help me

天哪，你连你装的什么系统都不知道啊？
命令行输入cat /etc/issue
看输出什么，然后我再告诉你该做什么。

看了/etc/issuem. 是ubuntu 6.06 LTS 应该是dapper

我用deb http://cn.archive.ubuntu.com/ubuntu dapper main restricted universe multiverse 也试过了，同样是这个问题
$ sudo apt-get update
Err http://security.ubuntu.com dapper-security Release.gpg
Could not connect to security.ubuntu.com:80 (82.211.81.138). - connect (111 Connection refused)
Err http://mirror.lupaworld.com dapper Release.gpg
Could not connect to mirror.lupaworld.com:80 (211.155.231.159). - connect (111 Connection refused)
Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dis ... elease.gpg Could not connect to cn.archive.ubuntu.com:80 (211.155.231.159). - connect (111 Connection refused)
Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dis ... elease.gpg Could not connect to cn.archive.ubuntu.com:80 (211.155.231.159). - connect (111 Connection refused)

Reading package lists... Done
W: Some index files failed to download, they have been ignored, or old ones used instead.

用breezy也一样，不知道怎么回事了，
另外，我在linux下用浏览器时要先输入我进入windows 时的账号密码的，会不会是这个原因？

用浏览器和win有什么关系？
莫非你用虚拟机装的ubuntu？

不是用虚拟机装的， 你知道怎么解决这个问题吗？

我没有碰到过。
你上网要代理么？

汗死，我以前装的是5.10版本，今天刚更新，结果更新完后发现一进入系统老会跳出一个窗口：
intelnal error
failed to initialize hall


不知道这是怎么回事？

不用代理