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centos
vim /etc/sysconfig/network-scripts/ifcfg-ens33
内容：
BOOTPROTO=static
IPADDR=
NETMASK=
GATEWAY=
DNS1=114.114.114.114
DNS2=8.8.8.8
service network restart
systemctl restart network
防火墙：
systemctl enable firewalld.service
systemctl disable firewalld.service
firewall-cmd --state
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kali
vi /etc/network/interfaces
内容：
auto eth0 网卡名称
iface eth0 inet static #静态，想弄成自动分配的把static改成dhcp就可以了
address #IP
netmask 255.255.255.0 #子网掩码
gateway #网关
DNS文件
vi /etc/resolv.conf
nameserver 8.8.8.8
nameserver 114.114.114.114
systemctl restart networking
防火墙：
systemctl start firewalld #启动firewalld服务
systemctl stop firewalld #关闭firewalld服务
systemctl restart firewalld #重启firewalld服务
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ubantu
vim /etc/network/interfaces
auto ens33 # 默认动态配置网卡信息，如果需要配置网卡为动态ip，直接写这一句即可，不需要再添加下面四行的配置信息
iface ens33 inet static # 指定配置网卡为静态ip
address 192.168. # 网卡ip地址
gateway 192.168. # 网关
netmask 255.255.255.0 # 子网掩码
dns-nameservers 8.8.8.8 # dns，可以连着写多个，如dns-nameservers 8.8.8.8 114.114.114.114，用空格分隔开即可
sudo systemctl restart NetworkManager.service
sudo /etc/init.d/networking restart
防火墙：
sudo iptables-save > iptables.rules
sudo service iptables stop
sudo service iptables start
或
sudo ufw allow in
sudo ufw disable