Step‑by‑Step Guide to Configuring Cluster VM Network Settings on Linux
This guide walks through configuring static IP, netmask, gateway, and DNS for each node in a virtual‑machine cluster on Linux, showing exact file edits for the master and slave machines, testing connectivity with ping commands, and confirming the network setup is complete.
To configure the network of a virtual‑machine cluster on Linux, edit the network‑interface configuration file on each node and set static IP, netmask, gateway, and DNS.
On the master node, modify /etc/sysconfig/network-scripts/ifcfg-eth0 with the following content:
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=noOn a slave node (e.g., slave1), use a similar file with the appropriate 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=noAfter configuring all nodes, test connectivity with ping commands:
# ping master
# ping -c 3 slave1
# ping -c 3 slave2
# ping -c 3 slave3
# ping -c 3 slave4When all ping tests succeed, the cluster’s virtual‑machine network configuration is complete.
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