You could edit config file selinux in Fedora to change the default settings.
The config would look like this if you open it using a text editing software..
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - SELinux is fully disabled.
# SELINUXTYPE= type of policy in use. Possible values are:
# targeted - Only targeted network daemons are protected.
# strict - Full SELinux protection.
You might think that since you're not using an antivirus software for LINUX it would be better to change the value of
SELINUXTYPE to strict instead of targeted.
You should update the policy files(download if the package is not installed) before changing this default value.
Once you've made sure that everything is alright you could change "targeted" to "strict"
Else, you may end up in a boot screen which last for a life time !!!
This is because the grub searches for the policy files for "strict" which are not present in Fedora16 by default and can't find it.