Tag: firewall configuration
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Iptables
Iptables is a powerful command-line utility used to configure and manage the Linux kernel’s built-in netfilter firewall. It provides granular control over incoming, outgoing, and forwarded network traffic, making it a vital tool for system administrators to secure Linux-based systems. Iptables works by defining rules within chains, which are part of tables that specify how…
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Security Groups
In AWS, Security Groups act as virtual firewalls to control inbound and outbound traffic to your EC2 instances, ensuring that only authorized access occurs while protecting your cloud infrastructure from potential threats. They are stateful, meaning that if you allow inbound traffic, the response is automatically allowed, regardless of outbound rules. This guide will walk…