ubuntu 配置网卡,DNS, iptables

 # 配置静态ip地址

root@simon:~# vim /etc/network/interfaces
auto enp4s0
iface enp4s0 inet static
address 192.168.11.166
netmask 255.255.255.0
gateway 192.168.11.254

root@simon:~# vim /etc/netplan/50-cloud-init.yaml 
network:
    ethernets:
        enp4s0:
            addresses:
            - 192.168.11.166/24
            dhcp4: false
            gateway4: 192.168.11.254
            nameservers:
                addresses:
                - 8.8.8.8
    version: 2

# 配置iptables

使用配置静态ip方式1 可以使用

root@simon:~# vim /etc/network/interfaces
...
pre-up iptables-restore < /etc/network/iptables.up.rules
post-down iptables-save > /etc/network/iptables.up.rules

root@simon:~# apt-get install iptables-persistent
root@simon:~# netfilter-persistent save
root@simon:~# netfilter-persistent reload
# 生成的配置存储在
 /etc/iptables/rules.v4
 /etc/iptables/rules.v6

 # 配置dns

root@simon:~# sed -i 's/#DNS=/DNS=8.8.8.8/g' /etc/systemd/resolved.conf
root@simon:~# systemctl restart systemd-resolved