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vim修复,telnet安装启动,linux更新软件源



vim修复:

修复前提,你到UBUNTU可以联网,否则只能卸载,不能安装

1.sudo apt-get remove vim-common

2.sudo apt-get install vim

 

telnet

开启telnet:

1.首先安装必要telnet

在终端输入命令:sudo apt-get install xinetd telnetd

2.配置

1sudo vi/etc/inetd.conf 并加入以下一行

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

 

2)输入sudo vi/etc/xinetd.conf并加入内容:

# 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

3sudo vi/etc/xinetd.d/telnet并加入以下内容:

# 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)重启网络服务sudo/etc/init.d/xinetd restart

5)即可在另一台客户端上登录开启TTELNET的服务器

 

关闭telnet:

1.ctrl + ]回车

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

 

将下面源复制到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