How to Configure Cluster VM Network Settings on Linux: Step-by-Step Guide

Virtual machine network configuration tutorial.

1. Modify network configuration file

Edit /etc/sysconfig/network-scripts/ifcfg-eth0 and set device parameters such as IP address, gateway, netmask, DNS, and other options.

DEVICE=eth0
HWADDR=00:0C:29:33:85:27
TYPE=Ethernet
UUID=0099dc9f-a67a-4af5-a2c2-0b96e95ffe5d
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=202.118.86.11
NETMASK=255.255.255.224
GATEWAY=202.118.86.1
DNS1=8.8.8.8
DNS2=8.8.4.4
IPV6INIT=no

Apply the same steps to each slave node, only changing the IP address.

DEVICE=eth0
HWADDR=00:0C:29:2E:73:5E
TYPE=Ethernet
UUID=6488cec5-24fe-487e-b2f6-83e1de889292
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=202.118.86.12
NETMASK=255.255.255.224
GATEWAY=202.118.86.1
DNS1=8.8.8.8
DNS2=8.8.4.4
IPV6INIT=no

2. Test network connectivity

Ping each server to verify the network is reachable.

[root@master ~]# ping master
[root@master ~]# ping -c 3 slave1
[root@master ~]# ping -c 3 slave2
[root@master ~]# ping -c 3 slave3
[root@master ~]# ping -c 3 slave4

After completing these steps, the cluster VM network configuration is finished.