Linux Firewalls
(ไฟร์วอลล์ลินุกซ์)
Definition
Linux Firewalls (ไฟร์วอลล์ลินุกซ์) Tool
Linux Firewalls refer to security systems implemented on Linux-based operating systems to control network traffic, prevent unauthorized access, and protect systems from cyber threats by filtering incoming and outgoing packets based on predefined rules.
Expertise Level
Level 1
Basic
1. Understands basic concepts of firewalls and network security.
2. Can identify simple firewall rules and their purposes.
3. Able to use basic Linux firewall tools like iptables to allow or block traffic.
Level 2
Intermediate
1. Able to configure and manage firewall rules for multiple services and protocols.
2. Understands stateful firewall concepts and can implement them in Linux.
3. Can troubleshoot firewall issues and monitor firewall logs effectively.
Level 3
Advanced
1. Designs and implements complex firewall policies integrating with network architecture.
2. Utilizes advanced Linux firewall tools such as nftables or firewalld with custom scripts.
3. Can perform security audits, optimize firewall performance, and respond to sophisticated cyber threats.
