Useful Firewall Rules to Configure and Manage Firewall in Linux
Managing network traffic is a critical aspect of any organization and a tricky job for system administrators. Knowing what traffic to allow and what to block can be a matter of being safe or vulnerable to cyber-attacks.
A firewall is a tool built to aid system administrator’s in regulating incoming and outgoing traffic. System administrators working with Linux servers must be familiar with Iptables. Iptables is a flexible firewall tool built for Linux operating systems. Iptables can seem intimidating, but knowing a few tricks and commands could make working with Iptables much easier.
1. What is Iptables and how to view them
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