Step-by-Step Guide to Configuring VM Network for a Cluster
This tutorial walks you through editing the network interface files on a master and its slave nodes, setting static IPs, gateways, and DNS, then verifies connectivity with ping commands, completing the virtual machine cluster network configuration.
Step 1: Modify Network Configuration File
Open the network interface file on the master node: vi /etc/sysconfig/network-scripts/ifcfg-eth0 Set the following parameters (replace IP‑related values for each node):
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=noImage of the master configuration:
On each slave node (example slave1) use a similar file with its own MAC address and 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=noImage of the slave configuration:
Other nodes follow the same pattern, only the IP address changes.
Step 2: Test Connectivity
Ping each host to verify the network is reachable:
ping master
ping -c 3 slave1
ping -c 3 slave2
ping -c 3 slave3
ping -c 3 slave4Screenshot of ping results:
After completing these steps, the cluster virtual machines have their network configured and are ready for further operations.
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