/etc/modprobe.conf # kernel 2.6; not exists in default after fedora 10
/etc/modprobe.d/
/etc/modules.conf # kernel 2.4

/etc/profile.d/

/etc/resolv.conf

/etc/udev/rules.d/
	70-persistent-net.rules

/etc/sysconfig/network
/etc/sysconfig/network-scripts/
	ifcfg-eth0

/etc/X11/xorg.conf # not exists in default after fedora 10

/lib/modules/.../kernel/drivers/net/

/lib/modules/.../modules.dep

/usr/lib/xorg/modules/drivers/

/var/log/
	boot.log
	dmesg
	message
	Xorg.0.log # search "Matched"