Network Hardening Lab Recommendations

Here's the response:

"You might want to explore the "Networking" collection. This collection offers 22 labs covering various networking concepts and security measures, which can be beneficial for understanding network vulnerabilities and mitigation techniques.

Additionally, the "VPC & Network Security" collection provides insights into configuring and managing network resources, which could be useful for firewall and router hardening.

While these collections may not focus specifically on PfSense or Vyos, they provide foundational knowledge that can be applied to various network security scenarios."