configuring-firewalls
Configuring Firewalls
Purpose
Guide engineers through configuring firewalls across host-based (iptables, nftables, UFW), cloud-based (AWS Security Groups, NACLs), and container-based (Kubernetes NetworkPolicies) environments with practical rule examples and safety patterns to prevent lockouts and security misconfigurations.
When to Use This Skill
Trigger Phrases:
- "Configure firewall for [server/service]"
- "Set up security groups for [AWS resource]"
- "Allow port [X] through firewall"
- "Block IP address [X.X.X.X]"
- "Set up UFW on Ubuntu server"
- "Create iptables/nftables rules"
- "Configure bastion host firewall"
- "Implement egress filtering"
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