FirewallD is the default firewall daemon used in Fedora linux. FirewallD provides a dynamically managed firewall with support for network/firewall zones to define the trust level of network connections or interfaces. It has support for IPv4, IPv6 firewall settings and for ethernet bridges and has a separation of runtime and permanent configuration options. It also supports an interface for services or applications to add firewall rules directly.
From a terminal window,
Check Status of FirewallD
[root@fedora22w ~]# systemctl status firewalld ● firewalld.service - firewalld - dynamic firewall daemon Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled) Active: inactive (dead) Jan 24 13:42:02 fedora22w systemd: Starting firewalld - dynamic firewall..... Jan 24 13:42:57 fedora22w systemd: Started firewalld - dynamic firewall ...n. Jan 24 13:53:57 fedora22w systemd: Stopping firewalld - dynamic firewall..... Jan 24 13:53:57 fedora22w systemd: Stopped firewalld - dynamic firewall ...n. Jan 24 14:10:32 fedora22w systemd: Stopped firewalld - dynamic firewall ...n. Hint: Some lines were ellipsized, use -l to show in full.
Disabling your firewall is not the best recommended approach to security and you might have uninvited guests on your computer/network. However, there may be instances when you need to disable the firewall. Say for instance, your network is already protected by a firewall/router or you are troubleshooting a problem.
In any case, to temporarily stop FirewallD
[root@fedora22w ~]# systemctl stop firewalld
This will stop the FirewallD service but will be enabled in the next reboot.
To permanently disable FirewallD. [root@fedora22w ~]# systemctl disable firewalld Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service. Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
To start FirewallD service again [root@fedora22w ~]# systemctl start firewalld
To permanently enable FirewallD again [root@fedora22w ~]# systemctl enable firewalld Created symlink from /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service to /usr/lib/systemd/system/firewalld.service. Created symlink from /etc/systemd/system/basic.target.wants/firewalld.service to /usr/lib/systemd/system/firewalld.service.