How to configure static ip address and Host name on CentOS/RHEL 7

In this tutorial i will explain how to configure static ip address  and Hostname  in CentOS/RHEL- 7 .

run ip addr command to show ip status and interface name .
command output:

Note: ens33 is interface is as above marked.

Configure static/manual ip address in centos 7
Edit file /etc/sysconfig/network-scripts/ifcfg-ens33 and set the below parameter .
#vim /etc/sysconfig/network-scripts/ifcfg-ens33
DEVICE=ens33
NAME=ens33
TYPE=Ethernet
BOOTPROTO=static
ONBOOT=yes
IPADDR=192.168.0.65
NETMASK=255.255.255.0

Now congiure Hostname and gateway ip address, edit file /etc/sysconfig/network and add below paramenter .

#vim /etc/sysconfig/network

NETWORKING=yes

HOSTNAME=server.example.com
GATEWAY=192.168.0.1

Configure DNS ip address
Edit file /etc/resolv.conf  and add below parameter .
#vim /etc/resolv.conf
nameserver 8.8.8.8

Now start or restart network service

# systemctl start network
or,
# systemctl restart network

check ip/network address

# ip addr
Command output:

Run command to update system hostname
[root@localhost ]# hostname server.example.com
[root@localhost ]# bash

Hostname status
[root@server ~]# hostname
server.example.com

Command to show gateway ip address
#route -n
command output:

Test configured network, by using ping command
You can ping your gateway ip address, if ping  status is ok that means you have configured your network card properly.
#ping 192.168.0.1
command output:

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About Penguin Technology

I am a passionate cloud and DevOps professional specializing in Linux and open-source solutions. Through this blog, I share my knowledge and experience with the community, offering tips and insights on cloud technologies and DevOps practices.