这篇文章给大家介绍Xshell连接Ubuntu连接失败如何解决，内容非常详细，感兴趣的小伙伴们可以参考借鉴，希望对大家能有所帮助。
刚入手Ubuntu，发现各种不适。使用Xshell连接Ubuntu（装在虚拟机下18.04.3）怎么也连接不上。
指令
sudo ufw status
发现我的是关了防火墙的。
开启指令
sudo apt-get install openssh-server
安装该SSH服务后，可以连接Ubuntu系统。
命令
sudo vim /etc/apt/sources.list
命令
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
指令
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
sudo apt-get update sudo apt-get upgrade
拉取镜像
docker pull tomcat
启动tomcat
docker run --name tomcat1 -d -p 8080:8080 tomcat
查看是否启动成功
docker ps -a
拉取镜像
docker pull nginx
启动Nginx
docker run --name nginx -d -p 80:80 nginx
拉取镜像
docker pull mysql
启动mysql
docker run --name mysql01 -e MYSQL_ROOT_PASSWORD=123456 -d -p 3306:3306 mysql
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