centOs关闭防火墙
firewall-cmd --state #查看默认防火墙状态(关闭后显示notrunning,开启后显示running)
[root@localhost ~]#firewall-cmd
--state
not
running
检查防火墙的状态:
从centos7开始使用systemctl来管理服务和程序,包括了service和chkconfig。
[root@localhost ~]#systemctl list-unit-files|grep firewalld.service
--防火墙处于关闭状态
firewalld.service disabled
或者
[root@localhost ~]#systemctl status firewalld.service
firewalld.service - firewalld -
dynamic
firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
Active: inactive (dead)
关闭防火墙:
systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall开机启动
[root@localhost ~]#systemctl stop firewalld.service
[root@localhost ~]#systemctl disable firewalld.service
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