比如：
Password:
Your default context is user_u:system_r:unconfined_t.

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Last login: Wed Jun 6 21:44:04 from 10.157.143.43
[oracle@Brazil_DMDISty ~]$

DMD-Graphic<*graphic*/etc/selinux>ls
config targeted
DMD-Graphic<*graphic*/etc/selinux>
DMD-Graphic<*graphic*/etc/selinux>

將其中的 SELINUX=enforcing 注释掉，然后加入

SELINUX=disabled 即可。

DMD-Graphic<*graphic*/etc/selinux>cat config
# 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.
#SELINUX=enforcing
SELINUX=disabled
# SELINUXTYPE= type of policy in use. Possible values are:
# targeted - Only targeted network daemons are protected.
# strict - Full SELinux protection.
SELINUXTYPE=targeted
DMD-Graphic<*graphic*/etc/selinux>ls
config targeted
DMD-Graphic<*graphic*/etc/selinux>