6.8关闭防火墙selinux

 cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.159.152    testdb.itcast.cc testdb
10.1.1.1    testdb.itcast.cc testdb
注意:
前两行内容不要动!!!

补充:
1. 关闭防火墙
临时关闭:
service iptables stop
开机不要自启动:
chkconfig iptables off
# chkconfig --list|grep iptables        查看是否关闭
iptables           0:off    1:off    2:off    3:off    4:off    5:off    6:off

2. 关闭selinux
三种模式:
enforcing:强制模式
permissive:警告模式
disabled:关闭
临时放到警告模式:
setenforce 0
查看状态:
 getenforce 
Permissive
永久关闭:
[root@MissHou ~]# vi /etc/selinux/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 - No SELinux policy is loaded.
SELINUX=disabled        改为disabled
...
注意:关闭需要重启系统才生效

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