Ubantu18.04安装SSH服务

Ubantu18.04安装SSH服务

一.安装openssh-service

这里有两个路径可以下载

命令：

1.  sudo apt-get install opessh-server
   

2.  su  root
   

3.   apt-get instal  openssh-server
   

注：因为安装这些服务等 需要你的超级管理员root 第二种是让你明白是什么.(详细说明了这个步骤)

启动SSH服务

     /etc.init.d/ssh start 
     会出现
     [ ok ] Strting ssh (via systemctl): ssh service.

注:重启与关闭命令

    /etc/init.d/ssh restart   #重启SSH服务
    /etc/init.d/ssh stop      #关闭SSH服务

2.查看进程，坚持是否启动成功！

        ps   -e | grep sshd      

然后就可以看到服务了就可以使用SSH了

如果shh 的安装不能启动 那就需要找国内的ubantu18.04更新源

备份/etc/apt/sources.list
#备份
cp /etc/apt/sources.list /etc/apt/sources.list.bak

在 sudo vim /etc/apt/sources.list文件前面添加如下条目
#添加阿里源

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

最后执行如下命令更新源
##更新

 sudo apt-get update
 sudo apt-get upgrade

记得把原本的源用#注掉哦