启动容器

docker pull centos:7
docker run -d -name centos --privileged=true -p 222:22 centos:7 /usr/sbin/init
docker exec -it centos /bin/bash

安装环境

进入容器后安装sshd

# 安装sshd，开启sshd
yum install openssh-server -y
systemctl start sshd

# 配置sshd，配置如下几项
vi /etc/ssh/sshd_config
-----
Port 22
#AddressFamily any
ListenAddress 0.0.0.0
ListenAddress ::
-----
PermitRootLogin yes
-----
GSSAPIAuthentication yes
GSSAPICleanupCredentials yes

# 重启sshd
systemctl restart sshd

安装passwd

yum install passwd
# 设置root密码
passwd root

连接测试

选择222端口，输入配置的密码连接成功