Commands

show ip

$ ip address
$

renew or release an IP address

$ sudo dhclient -r eth0
$ sudo dhclient eth0
$

set hostname

$ sudo hostnamectl set-hostname <neuer Hostname>
$

set static ip

$ sudo vi /etc/network/interfaces
$

/etc/network/interface

# The loopback network interface
auto lo
iface lo inet loopback
 
# allow-hotplug eno1
# iface eno1 inet dhcp
 
# The primary network interface
auto eno1
iface eno1  inet static
 address <ip>
 netmask <netmask>
 gateway <gateway>
 dns-domain <domain>
 dns-nameservers <nameserver>

restart network-interface

$ sudo /etc/init.d/networking restart
$

$ ifconfig eth0 down && ifconfig eth0 up
$
 
ODER
 
$ ifdown eth0 && ifup eth0
$