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Automated builds using CentOS 7 and Kickstart
Rapid Install
Automating builds can have a huge effect in time savings when building new Linux servers and workstations. However, time is not the only advantage; automated builds can also ensure you meet PCI data security standards (DSS), internal audits, patching requirements, and other security controls and measures that make up the reality of today's system administrator's responsibilities.
Automating builds using Kickstart [1] comprises two key parts: booting the system off the network and installing the system. The booting portion typically involves DHCP relaying and PXE boot network support, which is beyond the scope of this article, so I will focus on the automated system installation.
Installing CentOS 7
The first step in building out a Kickstart infrastructure is to install the CentOS 7 operating system on the Kickstart server. The X Window system is not needed, so the hardware doesn't need to be high end; however, a faster system with a good network connection will make standard builds quicker. Here are the steps involved in installing CentOS 7:
1. Download the ISO [2].
2. Burn the ISO to DVD.
3. Configure the server to boot from DVD.
4. Start the install. Once the server boots, you'll see the Install CentOS 7 prompt (Figure 1).
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