This article will show to configure a simple lightweight local DNS with DNSMASQ in Oracle Linux 7.
This is handy for a small private network and quite useful for a oracle homelab, especially to resolv hostname and domain name.
This article will show how to use persistent naming with UUID.
Adding disk controller or new hard disk may result on a different device mapping on next reboot, for example
/dev/sda can switch with
In order to avoid theses issues, we will use persistent naming.
After installing Oracle Enterprise Linux 7 (OEL7) virtual machine on VirtualBox (as explained here), I would recommend to install the VirtualBox Guest Additions.
For any serious and interactive use, the VirtualBox Guest Additions will make your life much easier by providing closer integration between host and guest and improving the interactive performance of guest systems.Virtualbox
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