root@localhost:~# vi /etc/network/interfaces
# 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 enp1s0
# comment out
#iface enp1s0 inet dhcp

# add static settings
iface enp1s0 inet static
# IP address
address 10.0.0.30
# network address
network 10.0.0.0
# subnet mask
netmask 255.255.255.0
# broadcast address
broadcast 10.0.0.255
# default gateway
gateway 10.0.0.1
# name server
dns-nameservers 10.0.0.10

  
root@localhost:~#  systemctl restart ifup@enp1s0

root@localhost:~# ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 52:54:00:ad:4e:fb brd ff:ff:ff:ff:ff:ff
    altname enx525400ad4efb
    inet 10.0.0.30/24 brd 10.0.0.255 scope global enp1s0
       valid_lft forever preferred_lft forever

root@localhost:~# vi /etc/resolv.conf
# set your domainame and nameserver
domain srv.lcd
nameserver 10.0.0.10