Linux Static IP Address Configuration

RHEL / Red hat / Fedora / CentOS Linux Static IP Configuration

For static IP configuration you need to edit the following files using a text editor such as vi. Edit /etc/sysconfig/network as follows, enter:
# cat /etc/sysconfig/network
Sample static ip configuration:
NETWORKING=yes
HOSTNAME=server1.cyberciti.biz
GATEWAY=192.168.3.1
Edit /etc/sysconfig/network-scripts/ifcfg-eth0, enter:
# cat /etc/sysconfig/network-scripts/ifcfg-eth0
note:for fedora 19
Goto cd /etc/sysconfig/network-scripts/
ls | grep ifcfg
vi <ifcfg-enp0s3 or ifcfg-eth0 or ifcfg-p1s0>

 

Sample static ip configuration:
# Intel Corporation 82573E Gigabit Ethernet Controller (Copper)DEVICE=eth0
BOOTPROTO=static
DHCPCLASS=HWADDR=00:30:48:56:A6:2E
IPADDR=192.168.1.10
NETMASK=255.255.255.0
ONBOOT=yes

 

Sample static IP configurations:
nameserver 192.168.1.254
nameserver 8.8.8.8
nameserver 202.54.2.5

 

Finally, you need to restart the networking service, enter:
# /etc/init.d/network restart

 

To verify new static ip configuration for eth0, enter:
# ifconfig eth0

Debian / Ubuntu Linux Static IP Configuration

Edit /etc/hostname, enter:

# cat /etc/hostname

 

# cat /etc/network/interfaces

 

Sample static ip config:
iface eth0 inet static
    address 192.168.1.10
    network 192.168.1.0
    netmask 255.255.255.0
    broadcast 192.168.1.255
    gateway 192.168.1.254

Sample dns static IP configurations:
nameserver 192.168.1.254
nameserver 8.8.8.8
nameserver 202.54.2.5
# /etc/init.d/networking restart

 

Type the following commands to verify your new setup, enter:
# ifconfig eth0
# route -n
# ping google.com

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