vim修複，telnet安裝啟動，linux更新軟體源

vim修複：

修複前提，你到UBUNTU可以連網，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）重啟網路服務sudo/etc/init.d/xinetd restart

5）即可在另一台用戶端上登入開啟TTELNET的伺服器

 

關閉telnet:

1.ctrl + ]斷行符號

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

 

將下面源複製到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