Disable the service from starting on system boot
systemctl disable NetworkManager
Stop the service from running
systemctl stop NetworkManager
And if you want to remove it from the system.
yum remove NetworkManager
Refer to this post if you need to set a static IP Address
The network configuration settings for the server edition of Ubuntu are now stored in the following location. Create the file if it does not exist.
sudo vi /etc/netplan/01-network-manager-all.yaml
Add or edit the config file to the following. Change eno1 to your interface name and the address and gateway to the appropriate IP’s
For more information, see netplan(5).
network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: no
addresses: [192.168.200.24/24]
gateway: 192.168.200.1
nameservers:
addresses: [8.8.8.8,8.8.4.4]
Now apply the changes with the following command.
sudo netplan apply
Using ip command
ip add
example output
bob@localhost:~$ ip add
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno1: mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 38:ea:a7:13:a4:fe brd ff:ff:ff:ff:ff:ff
inet 192.168.1.21/24 brd 192.168.1.1 scope global dynamic noprefixroute eno1
valid_lft 513sec preferred_lft 513sec
inet6 13ac::98fe::ae78:d1ff/64 scope link noprefixroute
valid_lft forever preferred_lft forever
bob@localhost:~$
ifconfig
You may need to install net-tools to use
ifconfig
example output
bob@localhost:~$ ifconfig
eno1: flags=4163 mtu 1500
inet 192.168.200.58 netmask 255.255.255.0 broadcast 192.168.1.21
inet6 13ac::98fe::ae78:d1ff prefixlen 64 scopeid 0x20
ether b8:ac:6f:91:01:e8 txqueuelen 1000 (Ethernet)
RX packets 184950632 bytes 9487577263452
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 128473456 bytes 234612443785
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Using the hostname command
hostname -I
Output is just the IP address. Example below
192.168.1.21