一、关闭防火墙
centos从7开始默认用的是firewalld,这个是基于iptables的,虽然有iptables的核心,但是iptables的服务是没安装的。
所以你只要停止firewalld服务即可:
sudo systemctl stop firewalld.service && sudo systemctl disable firewalld.service
如果你要改用iptables的话,需要安装iptables服务:
sudo yum install iptables-services
sudo systemctl enable iptables && sudo systemctl enable ip6tables
sudo systemctl start iptables && sudo systemctl start ip6tables
二、关闭selinux
Linux在安装好之后通常SELinux都是出于默认开启的状态,开启的情况下会导致一些服务的安装不成功。
在不需要的情况下完全可以关闭掉,下面是在centos 7.0里面如何查看,关闭selinux。
查看selinux状态
#sestatus
临时关闭
#setenforce 0
永久关闭
可以修改配置文件/etc/selinux/config,将其中SELINUX设置为disabled。
[root@localhost ~]# cat /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=enforcing SELINUX=disabled # SELINUXTYPE= can take one of three two values: # targeted - Targeted processes are protected, # minimum - Modification of targeted policy. Only selected processes are protected. # mls - Multi Level Security protection. SELINUXTYPE=targeted[root@rdo ~]# sestatus SELinux status: disabled