vim修復：

修復前提，你到UBUNTU可以聯網，否則只能卸載，不能安裝

1.sudo apt-get remove vim-common

2.sudo apt-get install vim

telnet：

開啟telnet:

1.首先安裝必要telnet

在終端輸入命令：sudo apt-get install xinetd telnetd

2.配置

1）sudo vi/etc/inetd.conf 並加入以下一行

telnet stream tcp nowait telnetd/usr/sbin/tcpd /usr/sbin/in.telnetd

2）輸入sudo vi/etc/xinetd.conf並加入內容：

# Simple configuration file for xinetd

#

#Some defaults, and include /etc/xinetd.d/

defaults

{

#Please note that you need a log_type line to be able to use log_on_success

#and log_on_failure. The default is the following :

#log_type = SYSLOG daemon info

instances = 60

log_type = SYSLOG authpriv

log_on_success = HOST PID

log_on_failure = HOST

cps = 25 30

}

includedir /etc/xinetd.d

3）sudo vi/etc/xinetd.d/telnet並加入以下內容：

# default: on

#description: The telnet server serves telnet sessions; it uses \

#unencrypted username/password pairs for authentication.

service telnet

{

disable = no

flags = REUSE

socket_type = stream

wait = no

user = root

server = /usr/sbin/in.telnetd

log_on_failure += USERID

}

4）重啟網絡服務sudo/etc/init.d/xinetd restart

5）即可在另一台客戶端上登錄開啟TTELNET的服務器

關閉telnet:

1.ctrl + ] 回車

2.quit退出

ubuntu更新源：

sudo cp /etc/apt/sources.list/etc/apt/sources.list.backup

sudo gedit /etc/apt/sources.list

將下面源復制到sources.list即可

deb http://mirrors.163.com/ubuntu/ precisemain universe restricted multiverse

deb-src http://mirrors.163.com/ubuntu/precise main universe restricted multiverse

deb http://mirrors.163.com/ubuntu/precise-security universe main multiverse restricted

deb-src http://mirrors.163.com/ubuntu/precise-security universe main multiverse restricted

deb http://mirrors.163.com/ubuntu/ precise-updatesuniverse main multiverse restricted

deb http://mirrors.163.com/ubuntu/precise-proposed universe main multiverse restricted

deb-src http://mirrors.163.com/ubuntu/precise-proposed universe main multiverse restricted

deb http://mirrors.163.com/ubuntu/precise-backports universe main multiverse restricted

deb-src http://mirrors.163.com/ubuntu/precise-backports universe main multiverse restricted

deb-src http://mirrors.163.com/ubuntu/precise-updates universe main multiverse restricted