https://www.cnblogs.com/Hi-blog/p/How-To-Disable-Firewall-And-Selinux-On-CentOS7.html
# 查看防火墙状态
# systemctl status firewalld.service
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
Active: active (running) since 二 2019-03-26 19:21:11 CST; 3 weeks 0 days ago
Main PID: 907 (firewalld)
CGroup: /system.slice/firewalld.service
└─907 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid
3月 26 19:21:10 localhost.localdomain systemd[1]: Starting firewalld - dynam...
3月 26 19:21:11 localhost.localdomain systemd[1]: Started firewalld - dynami...
Hint: Some lines were ellipsized, use -l to show in full.
# 临时关闭防火墙
# systemctl stop firewalld.service
# 禁止防火墙开机启动，永久关闭
# systemctl disable firewalld.service
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
查看selinux状态
# getenforce
Enforcing
临时关闭selinux
# setenforce 0
# getenforce
Permissive
永久关闭|禁止开机启动
进入到/etc/selinux/config文件
# vim /etc/selinux/config
将SELINUX=enforcing改为SELINUX=disabled,重启生效。