推荐几个国内Ubuntu更新源

Ubuntu 8.10 中默认的官方源实在是太慢了，我这里只有2～3KB/s ！！！ 于是找了几个不错的更新源分享一下，方便大家找到适合自己的最快更新源。

替换前做个副本先：
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

编辑源列表，加入国内源地址：
vi /etc/apt/sources.list

# Lupa完整源，据说2-3天与官方数据同步一次，浙江杭州双线服务器

deb http://mirror.lupaworld.com/ubuntu intrepid main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu intrepid-security main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu intrepid-updates main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu intrepid-backports main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu/ubuntu-cn intrepid main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid-security main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid-updates main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid-backports main restricted universe multiverse

或者

# 网易新开的更新源，欢迎国内其它门户继承与发扬

deb http://mirrors.163.com/ubuntu/ intrepid main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-backports main restricted universe multiverse

或者

# cn99 又回来了！该源服务器线路为江苏常州电信

deb http://ubuntu.cn99.com/ubuntu/ edgy main restricted universe multiverse 
deb http://ubuntu.cn99.com/ubuntu/ edgy-security main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-updates main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-proposed main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-backports main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-security main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-updates main restricted universe multiverse 
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-proposed main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-backports main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu-cn/ edgy main restricted universe multiverse

或者

# Mirrors.shlug.org 更新服务器，上海电信,Ubuntu China Official Mirror

deb http://cn.archive.ubuntu.com/ubuntu intrepid main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu intrepid-security main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu intrepid-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu intrepid-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu intrepid-proposed main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid-security main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid-updates main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid-backports main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid-proposed main restricted universe multiverse

或者

# 台湾的官方源，速度也相当不错，有时甚至快于内地的

deb http://tw.archive.ubuntu.com/ubuntu intrepid main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu intrepid-security main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu intrepid-updates main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu intrepid-backports main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu intrepid-proposed main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu intrepid main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu intrepid-security main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu intrepid-updates main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu intrepid-backports main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu intrepid-proposed main restricted universe multiverse

保存好后测试一下新源的速度如何：
sudo apt-get update

因为处在不同地区，换用之前先ping一下服务器看看响应时间。我用的lupa 的源，update 了一下，更新速度基本能在200K左右，已经比较满意了。

——————————————————————————————————————

另，附上几个教育网的源地址，建议打开看看，顺便就可以了解你的访问速度：

http://ubuntu.dormforce.net/ or http://ubuntu.uestc.edu.cn （电子科技大学）

http://ftp.sjtu.edu.cn/ （上海交大）

http://debian.ustc.edu.cn/ubuntu （中国科技大学）

ftp://ubuntu.realss.cn/ubuntu/ （吓大的更新服务器）

原文链接：http://blog.163.com/malloc_wet/blog/static/1104560862009763644325/

解决ubuntu中vi不能正常使用方向键与退格键的问题

解决办法：

   可以安装vim full版本，在full版本下键盘正常，安装好后同样使用vi命令。

安装vim：

 ubuntu预装的是vim tiny版本，而需要的是vim full版本。执行下面的语句安装vim full版本：

   $sudo apt-get remove vim-common

   $sudo apt-get install vim

这样就行了，vim是一款优秀的软件，可以在运用中体会到。