18.Linux optimization of SELinux

SELinux is the United States National Security Agency (NSA) to implement mandatory access control to limit root privileges (is a security mechanism, after closed, the security problem is solved by other means).
1.SELinux Close method

simply / etc / selinux / config in SELINUX = enforcing to disabled

method to view the current status of SELinux: getenforce
With this setting does not change the status of SELinux, have to restart the server, but the server service is restarted broken. So you can change the current status setenforce is permissive, which is also close SELinux