有时候我们希望修改默认的 ip 地址以及 DNS 服务器，来获得更好的网络。
对 Debian 来说，修改两个文件，一个是/etc/network/interfaces，另一个是/etc/resolv.conf
对于interfaces来说
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug ens18
iface ens18 inet static
address 192.168.2.35
netmask 255.255.255.0
gateway 192.168.2.60
在网关是192.168.2.60的时候；
如果还需要配置 DNS，修改 /etc/resolv.conf
nameserver 192.168.2.60
禁止ipv6
/etc/sysctl.conf
net.ipv6.conf.all.disable_ipv6 = 1
别忘了重启网络：systemctl restart networking.