SELinux (security-enhanced Linux) is the United States National Security Agency (NSA) implementation of mandatory access control, is the most outstanding new security subsystem in the history of Linux. Under the restriction of this access control system, the process can only access files that are needed in his tasks. SELinux is installed on Fedora and Red Hat Enterprise Linux by default.
Although SELinux is very useful, in most cases we turn it off because using selinux without knowing its mechanism can cause software installation or application deployment to fail
Here's how to turn off SELinux
System version: CentOS 6.5 Mini
1. View SELinux Status
View the verbose status of SELinux, if enabled
#/usr/sbin/sestatus-v
View the SELinux mode
# Getenforce
2. Turn off SELinux
2.1: Permanent shutdown (this will take effect after restarting the server)
# sed-i ' s/selinux=enforcing/selinux=disabled/'/etc/selinux/config
2.2: Temporary shutdown (effective immediately, but failed after restarting the server)
# Setenforce 0 #设置selinux为permissive模式 (i.e. off)
# setenforce 1 #设置selinux为enforcing模式 (Open)
This turns off SELinux, and you can consider shutting down SELinux and installing the software when you encounter problems with the installation
CentOS 6.X off SELinux