An Introduction to Firewalld

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LiquidWeb
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In this video, we explain many aspects of firewalld, including starting, stopping, management, and configuration of the service.

Commands used:

systemctl enable firewalld
systemctl start firewalld
systemctl stop firewalld
systemctl restart firewalld
systemctl status firewalld
firewall-cmd --permanent --add-port=22/TCP
firewall-cmd --permanent --remove-port=444/tcp
firewall-cmd --permanent --add-service=ssh
firewall-cmd --permanent --remove-service=mysql
firewall-cmd --permanent --add-source=192.168.1.100
firewall-cmd --permanent --add-source=192.168.1.0/24
firewall-cmd --permanent --remove-source=192.168.1.100

firewall-cmd --permanent --add-rich-rule="rule family='ipv4' source address='192.168.1.100' reject"

firewall-cmd --permanent --add-rich-rule="rule family='ipv4' source address='192.168.1.0/24' reject"

firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="192.168.1.100" port protocol="tcp" port="3306" accept'

firewall-cmd --permanent --remove-rich-rule='rule family="ipv4" source address="192.168.1.100" port protocol="tcp" port="3306" accept'

firewall-cmd --reload

firewall-cmd --list-all

sudo yum install firewall-config

The related article for this article can be found here: https://www.liquidweb.com/kb/an-introduction-to-firewalld/

For more information about this and other topics, visit us at https://www.liquidweb.com/kb/ or for more information on our Dedicated server line, visit: https://www.liquidweb.com/products/dedicated/

Video by: Justin Palmer
Category
Liquid Web
Tags
liquidweb, datacenter, web
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