关闭firewall:
firewall-cmd --state #查看默认防火墙状态(关闭后显示notrunning,开启后显示running)
systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall开机启动
init 6 #重启虚拟机,然后再输入第一条命令查看防火墙状态
CentOS6关闭防火墙使用以下命令,
//临时关闭
service iptables stop
//禁止开机启动
chkconfig iptables off
CentOS7中若使用同样的命令会报错,
stop iptables.service
Failed to stop iptables.service: Unit iptables.service not loaded.
这是因为CentOS7版本后防火墙默认使用firewalld,因此在CentOS7中关闭防火墙使用以下命令,
//临时关闭
systemctl stop firewalld
//禁止开机启动
systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
当然,如果安装了iptables-service,也可以使用下面的命令,
yum install -y iptables-services
//关闭防火墙
service iptables stop
Redirecting to /bin/systemctl stop iptables.service
//检查防火墙状态
service iptables status
Redirecting to /bin/systemctl status iptables.service
iptables.service - IPv4 firewall with iptables
Loaded: loaded (/usr/lib/systemd/system/iptables.service; disabled; vendor preset: disabled)
Active: inactive (dead)
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