CODEWITHSUNDEEP
bashnetwork-programmingcentos7
flik
flik

Reputation: 3633

How assign static ip to centOS 7?

I am using centOS 7 and my machine is changing IP randomly on restart. So, I want to assign IP static to get-rid from further changes on other areas.

For example I have to change ip address again and again in putty settings. etc

Upvotes: 3

Views: 3143

Answers (2)

IT-Guy
IT-Guy

Reputation: 514

Please follow the following steps to assign static IP in CentOs7

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

TYPE="Ethernet"
BOOTPROTO="static"
IPADDR=192.168.7.203
NETMASK=255.255.255.0
BROADCAST=192.168.7.255
NETWORK=192.168.7.0
GATEWAY=192.168.7.245
DNS1=8.8.8.8
DNS2=8.8.4.4
DEFROUTE="yes"
PEERDNS="yes"
PEERROUTES="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_PEERDNS="yes"
IPV6_PEERROUTES="yes"
IPV6_FAILURE_FATAL="no"
NAME="eth0"
UUID="696cc3d6-ac01-453b-967c-7decf10e6e6a"
DEVICE="eth0"
ONBOOT="yes"
ZONE=public

Now restart network interface by "service network restart"

its all done.

Upvotes: 4

Asad Iftikhar
Asad Iftikhar

Reputation: 78

First you can check your IP and subnetmask details from your machine with command

ifconfig

1st Solution :

Create a file named /etc/sysconfig/network-scripts/ifcfg-eth0 as follows:

DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
PREFIX=24
IPADDR=192.004.6.123

Restart network service: systemctl restart network

2nd Solution :

Open default file vi /etc/sysconfig/network-scripts/ifcfg-ens33 and modify you settings according to below settings

IPADDR=192.004.6.123
NETMASK=255.255.255.0
BROADCAST=192.169.7.255
BOOTPROTO="static"

Upvotes: 3

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