1、网卡

/etc/network/interfaces

auto eth0
iface eth0 inet dhcp


iface eth0 inet static #static表示使用固定ip，dhcp表述使用动态ip
address 192.168.37.101 #设置ip地址
netmask 255.255.255.0 #设置子网掩码
gateway 192.168.37.1 #设置网关

配置DNS服务器: /etc/resolv.conf
nameserver 192.168.37.1 #设置首选dns
nameserver 114.114.114.114 #设置备用dns

systemctl restart networking

2、ssh

nano /etc/ssh/sshd_config

PermitRootLogin yes

systemctl restart sshd