Configure a Static IP on CentOS 6.7 VMs in Minutes
This guide walks you through manually assigning an IP address to a CentOS 6.7 virtual machine by editing the network script, enabling boot, disabling the firewall, restarting the network, and verifying connectivity, enabling further tasks like building distributed clusters.
When setting up a virtual machine or server without an assigned IP address, you can manually configure the network on CentOS 6.7 to obtain an IP.
1. After creating the VM, check the current IP with ifconfig -a; NAT or bridge mode may not provide an address.
2. Edit the network configuration file /etc/sysconfig/network-scripts/ifcfg-eth0.
3. Change the ONBOOT value from no to yes and save with wq.
4. Verify the change with cat /etc/sysconfig/network-scripts/ifcfg-eth0.
5. Disable the firewall.
6. Restart the network service with service network restart.
7. Run ifconfig -a again; the VM should now have an automatically assigned IP.
8. Test connectivity with ping to confirm internet access.
After these steps, the VM has a usable IP address and can be used for further operations such as building distributed or CDH clusters.
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