Secure My Firewall | LinuxSecurity.com

How to secure my firewall

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How to configure firewalld rules in Linux

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Learn how to add, remove, enable, and disable firewalld rules & zones in this guide. The firewall is essential for controlling the flow of network traffic in and out of the Linux server. It enables users to control incoming network traffic on host machines by defining a set of firewall rules. It must be enabled on production servers facing the Internet, to protect those servers from unauthorized access. This is one of those security features that ensures your system security at network level.  

OPNsense set up and configure DNS Over TLS (DoT)

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OPNsense is an open-source, FreeBSD-based firewall and routing security software that also acts as a DNS resolver for all of your desktops and mobile devices. Learn how to configure the OPNsense DNS resolver to encrypt all DNS queries to protect from eavesdropping and increase your privacy and security online in this tutorial.

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