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Internal
Info
Ubuntu Version
lsb_release -a
Configuration
Network
Network Interfaces
ifup
ifup is one of the utilities that can be used to configure the network interfaces. It reads its configuration from /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
auto ens5
#iface ens5 inet dhcp
iface ens5 inet static
address 192.168.1.10
netmask 255.255.255.0
gateway 192.168.1.1
dns-servernames 1.1.1.1 8.8.8.8 8.8.4.4
NetworkManager
dhclient
DNS
DNS Resolver
DNS resolver is configured with resolvconf. Normally, resolvconf is invoked by network interface configuration programs, such as ifup, NetworkManager or dhclient. resolvconf can be run by administrators, but this s normally necessary.