Secure the network with firewalld
firewalld
is a set of scripts and a daemon that manage netfilter
on your RHEL system. It aims at creating a simple command-line interface to manage the firewall on your systems.
How to do it…
By default, firewalld
is included in the "core" rpm group, but it may not be installed for some reason (that you left it out of your kickstart would be one!). Perform the following steps:
- Install
firewalld
via the following command line:~]# yum install -y firewalld
- Now, enable
firewalld
through the following:~]# systemctl enable firewalld
- Finally, ensure that
firewalld
is started by executing the following command line:~]# systemctl restart firewalld
Showing the currently allowed services and ports on your system
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