RedHat Enterprise Linux 7关闭防火墙方法
在之前的版本中关闭防火墙等服务的命令是
service iptables stop
/etc/init.d/iptables stop
在RHEL7中,其实没有这个服务
[root@rhel7 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)
[root@rhel7 ~]# service iptables stop
Redirecting to /bin/systemctl stop iptables.service
[root@rhel7 ~]# /etc/init.d/iptables stop
-bash: /etc/init.d/iptables: No such file or directory
原来在RHEL7开始，使用systemctl工具来管理服务程序，包括了service和chkconfig
[root@rhel7 ~]# systemctl list-unit-files|grep enabled | grep firewalld
firewalld.service enabled
禁用防火墙
[root@rhel7 ~]# systemctl stop firewalld.service （重启恢复）
[root@rhel7 ~]# systemctl disable firewalld.service （永久关闭）
[root@rhel7 ~]# systemctl status firewalld.service
firewalld.service – firewalld – dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled)
Active: inactive (dead)
启动一个服务：systemctl start firewalld.service
关闭一个服务：systemctl stop firewalld.service
重启一个服务：systemctl restart firewalld.service
显示一个服务的状态：systemctl status firewalld.service
在开机时启用一个服务：systemctl enable firewalld.service
在开机时禁用一个服务：systemctl disable firewalld.service
查看服务是否开机启动：systemctl is-enabled firewalld.service;echo $?
查看已启动的服务列表：systemctl list-unit-files|grep enabled 
https://blog.csdn.net/u011846257/article/details/54707864