IP address: 15.84.25.84 Netmask: 255.255.255.0 Hostname: server.rootadminz.com Domain name: rootadminz.com Gateway: 15.84.25.83 DNS Server 1: 8.8.8.8 DNS Server 2: 4.4.4.4
To configure static IP address in RHEL / CentOS / Fedora, you will need to edit:
/etc/sysconfig/network /etc/sysconfig/network-scripts/ifcfg-eth0
Where in the above "ifcfg-eth0" answers to your network interface eth0. If your interface is named “eth1" then the file that you will need to edit is "ifcfg-eth1".
Let’s start with the first file:
# vi /etc/sysconfig/network
Open that file and set:
NETWORKING=yes HOSTNAME=server.rootadminz.com GATEWAY=15.84.25.83 NETWORKING_IPV6=no IPV6INIT=no
Next open:
# vi /etc/sysconfig/network-scripts/ifcfg-eth0
Note: Make sure to open the file corresponding to your network interface. You can find your network interface name with ifconfig -a command.
In that file make the following changes:
DEVICE="eth0" BOOTPROTO="static" DNS1="8.8.8.8" DNS2="4.4.4.4" GATEWAY="15.84.25.83" HOSTNAME="server.rootadminz.com" HWADDR="00:19:99:A4:46:AB" IPADDR="192.68.0.100" NETMASK="255.255.255.0" NM_CONTROLLED="yes" ONBOOT="yes" TYPE="Ethernet" UUID="8105c095-799b-4f5a-a445-c6d7c3681f07"
You will only need to edit the settings for:
DNS1 and DNS2 GATEWAY HOSTNAME NETMASK IPADDR
Other settings should have already been predefined.
Next edit resolve.conf file by opening it with a text editor such as nano or vi:
# vi /etc/resolv.conf
nameserver 8.8.8.8 # Replace with your nameserver ip nameserver 4.4.4.4 # Replace with your nameserver ip
Once you have made your changes restart the networking with:
# /etc/init.d/network restart [On SysVinit] # systemctl restart network [On SystemD]
Set Static IP Address in Debian / Ubuntu
To setup static IP address in Debian/ Ubuntu, open the following file:
# nano /etc/network/interfaces
You may see a line looking like this:
auto eth0 iface eth0 inet dhcp
Change it so it looks like this:
auto eth0 iface eth0 inet static address 15.84.25.84 netmask 255.255.255.0 gateway 15.84.25.83 dns-nameservers 4.4.4.4 dns-nameservers 8.8.8.8
Save the file and then edit /etc/resolv.conf like this:
# nano /etc/resolv.conf
nameserver 8.8.8.8 # Replace with your nameserver ip nameserver 4.4.4.4 # Replace with your nameserver ip
Restart the networking on your system with:
# /etc/init.d/network restart [On SysVinit] # systemctl restart network [On SystemD]
Your static IP address has been configured.
