Red Hat / Fedora run level configuration differs from Gentoo when it comes to configuring daemons to start on boot. In Gentoo, after installing a daemon such as apache:
# rc-update add apache2 default
The above we are adding apache to the default run level which is usually run level 5
The run levels are as followed:
Run Level | Description |
1 | Single User |
2 | Multi-user |
3 | Multi-user with Networking |
4 |