Setting up network without NetworkManager in Redhat 7
Setting up network without NetworkManager in Redhat 7
Red Hat Enterprise Linux 7: Setting up network without NetworkManager.
This video tutorial is part of RHCSA Fast Track course.
1) Stop NetworkManager service and disable it from startup after reboot
systemctl stop NetworkManager
systemctl disable NetworkManager
systemctl is-enabled NetworkManager
2) vi /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.99.201 lxserv01 lxserv01.domain99.private.com
3) vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
HWADDR=52:54:00:81:33:a7
NM_CONTROLLED=no
BOOTPROTO=static
ONBOOT=yes
IPADDR=172.16.99.201
NETMASK=255.255.255.0
NETWORK=172.16.99.0
BROADCAST=172.16.99.255
4) vi /etc/sysconfig/network
NETWORKING=yes
GATEWAY=172.16.99.1
5) vi /etc/resolv.conf
search domain99.private.com
nameserver 8.8.8.8
nameserver 208.67.222.222
6) Restart network service and verify if it is enabled to start after reboot
systemctl restart network
systemctl status network
systemctl is-enabled network
7) Verify networking
ip a (ip addr) (ip address)
ip r (ip route)
yum install net-tools
ifconfig -a
ifconfig eth0
netstat -r
netstat -rn
yum install bind-utils
nslookup redhat.com
dig redhat.com
dig @208.67.222.222 redhat.com
ping redhat.com
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