This session we will cover two important things Linux Server
- How to Assign or change Static IP
- How to ADD new Adaptor
In this session Centos Linux / Red HAT Linux
Here I will explain the steps to edit or assign new IP address to RedHat/Centos Server
Login to server
Go to the directory
[root@cent8 ~]# cd /etc/sysconfig/network-scripts/

Currently having this IP

Here I am using vi editor
Have changed the IP address and make it to 192.168.1.20

So, save it and exit from editor
Restart Network Manager
[root@cent8 network-scripts]# systemctl restart NetworkManager

Or
Down the network and again up the network
[root@cent8 network-scripts]# ifdown ens33
Once network again up
You will see reflected changes

This is the first Method to Change the IP Address.
Second method which I will use nmtui – (Network Manager Text User Interface)
[root@cent8 ~]# nmtui

If we wanted to change current IP click to edit

Current IP

Here I will assign new IP
Click Ok and exit

So need to restart network
[root@cent8 ~]# systemctl restart network

[root@cent8 ~]# ip addr

Here we will discuss how to add new IP to Centos/ RedHat Linux Server
How to add additional IP address
Go to Virtual Machine
Setting
Click to add new adaptor

Click finish and ok

Once network adaptor added new DHCP IP getting so now wanted to assign STATC IP
From nmtui or using vi edit can do that.

Once select manual assign ip insert ip and dns/gateway

Click ok and restart network manager
Down and up network
[root@cent8 ~]# ifdown ens36
[root@cent8 ~]# ifup ens36

These are the simple steps to add add edit change Network adaptor and IP Address in Linux Server