Linux - Assign an IP address

Command line
/sbin/ifconfig eth0 192.168.1.3 netmask 255.255.255.0 broadcast 192.168.1.255

GUI
/usr/bin/neat (Gnome)
/usr/sbin/netconfig (Console)


/etc/sysconfig/network

# Static IP address Configuration:
NETWORKING=yes
HOSTNAME=my-hostname # Hostname is defined here and by command hostname
FORWARD_IPV4=true # True for NAT firewall gateways and linux routers. False for everyone else - desktops and servers.
GATEWAY=”XXX.XXX.XXX.YYY” # Used if your network is connected to another network or the internet.

# Or for DHCP configuration: in the same file /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=my-hostname # Hostname is defined here and by command hostname
# Gateway is assigned by DHCP.


/etc/sysconfig/network-scripts/ifcfg-eth0

# Static IP address configuration:
DEVICE=eth0
BOOTPROTO=static
BROADCAST=XXX.XXX.XXX.255
IPADDR=XXX.XXX.XXX.XXX
NETMASK=255.255.255.0
NETWORK=XXX.XXX.XXX.0
ONBOOT=yes

# OR for DHCP configuration:
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=dhcp