Changing which services start and stop at boot

In the CentOS world, installing a new service doesn't immediately start and enable it, though it does in the Debian world (a default that, again, has its advocates and disparagers).

In this example, we're going to enable a new service and reboot our VM, checking what happens when it comes up.

Getting ready

Connect to your centos1 VM. Install httpd (Apache) for these examples:

$ sudo yum install -y httpd

How to do it...

First, let's see if we actually have a unit file for httpd:

$ systemctl cat httpd
# /usr/lib...