Many Linux users believe their firewall is fully protecting them—but a simple iptables misconfiguration can leave your system completely exposed.
This is one of the most overlooked mistakes in Linux security.
In this video, we break down:
Why your Linux firewall may not be working
The common iptables mistake developers make
How traffic bypasses incorrect rules
Step-by-step fix to secure your system
Best practices for firewall configuration
Important: Security depends on proper setup—don’t assume your firewall is safe.