![]() ![]() ![]() To get the default zone, type: # firewall-cmd -get-default-zone If you’ve got more than one network interface or use sources (see Source management section below), you will be able to restrict traffic between zones. Note: Without any configuration, everything is done by default in the public zone. In the latter case, this allows to restrict traffic based on origin zone (read this article from lwn.net for more details). Zone ManagementĪlso, a new concept of zone appears: all network interfaces can be located in the same default zone or divided into different ones according to the levels of trust defined. You can also look at the iptables rules created by Firewalld with the iptables-save command. Note: If you interested in kernel parameter configuration, there is a tutorial about the sysctl command.Īlthough Firewalld is the RHEL 7 way to deal with firewalls and provides many improvements, iptables can still be used (but both shouldn’t run at the same time). Then, activate the configuration: # sysctl -p To do that, paste the following line into the /etc/nf file: _forward=1 ![]() If you’ve got several network interfaces in IPv4, you will have to activate ip forwarding. Note: If Firewalld is not running, the command displays not running. Loaded: loaded (/usr/lib/systemd/system/rvice enabled)Īctive: active (running) since Tue 11:14:49 CEST 5 days ago To know if Firewalld is running, type: # systemctl status firewalldįrvice - firewalld - dynamic firewall daemon It mainly improves the security rules management by allowing configuration changes without stopping the current connections. It replaces the iptables interface and connects to the netfilter kernel code. Presentationįirewalld is the new userland interface in RHEL 7. Note: This is an RHCSA 7 exam objective and an RHCE 7 exam objective. ![]()
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