Yes, there are several resources available to help you learn about network hardening methods, including online courses, forums, and other educational materials. Here are some recommendations:

Online Courses:

1. Coursera - "Network Security & Database Vulnerabilities" (https://www.coursera.org/learn/network-security-database-vulnerabilities): This course, offered by the University of Colorado, covers various network security concepts, including network hardening, firewalls, and intrusion detection systems.

2. Udemy - "Network Security: The Complete Networking Security Course" (https://www.udemy.com/course/network-security-the-complete-networking-security-course/): This comprehensive course covers a wide range of network security topics, including network hardening, firewall configuration, and secure VPNs.

3. Cybrary - "Network Security" (https://www.cybrary.it/catalog/cyber-security/network-security/): Cybrary offers a variety of network security courses, ranging from beginner to advanced levels, covering topics such as network hardening, intrusion detection, and vulnerability assessments.

Forums and Communities:

1. Spiceworks Community (https://community.spiceworks.com/networking): Spiceworks is a popular online community for IT professionals, featuring forums dedicated to various networking and security topics.

2. Reddit - /r/networking (https://www.reddit.com/r/networking/) and /r/netsec (https://www.reddit.com/r/netsec/): Both of these subreddits are dedicated to networking and network security topics, respectively. You can find discussions, advice, and resource recommendations from industry professionals and enthusiasts.

3. SANS Internet Storm Center (https://isc.sans.edu/): The SANS ISC is a reliable source of security news, analysis, and forums. It's a great place to stay informed on the latest trends in network security and engage with other security professionals.

Books and Guides:

"Network Security: A Beginner's Guide" by Eric Maiwald: This book covers the basics of network security, including network hardening techniques, firewalls, and VPNs.

"Network Security Bible" by Eric Cole: This comprehensive guide covers a wide range of network security topics, including network hardening, secure network design, and intrusion detection.

"The Practice of Network Security Monitoring" by Richard Bejtlich: This book focuses on network security monitoring and teaches techniques for collecting and analyzing network traffic to detect and respond to security threats.

Remember to stay active in the community, keep up to date with the latest developments, and continuously learn to adapt to the ever-evolving landscape of network security.
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