1. host resolution - getaddrinfo
  2. dhclient-script
  3. dhclient
  4. Nice tutorial about linux networking
  5. Networkins basic tutorial
  6. Dracut RHEL6
  7. Dracut RHEL7
  8. POSIX shell
  9. GRUB wiki
  10. GRUB Legacy 1
  11. GRUB Legacy 2
  12. GRUB Legacy 3