networking
Installation
SKILL.md
Networking: Configuration, Troubleshooting, and Optimization
Configure, troubleshoot, and optimize Linux networking infrastructure. Covers DNS, reverse proxies, VPNs, firewalls (nftables), VLANs, subnetting, high availability, dynamic routing, and network performance tuning.
Target versions (May 2026):
| Tool | Version | Notes |
|---|---|---|
| Caddy | 2.11.2 | Auto-HTTPS, Caddyfile + JSON API |
| Nginx | 1.30.0 stable / 1.29.8 mainline | New stable branch released Apr 2026; verify current advisories |
| Traefik | 3.6.14 | Gateway API native, v2 EOL approaching |
| HAProxy | 3.3.7 stable / 3.2.16 LTS | LTS EOL 2030-Q2 |
| WireGuard tools | 1.0.20260223 | Kernel module + userspace tools |
| strongSwan | 6.0.6 | swanctl config (legacy ipsec.conf deprecated) |
| nftables | 1.1.6 | iptables successor, default on modern distros |
| keepalived | 2.3.4 | VRRP + health checks |
| Unbound | 1.24.2 | CVE-2025-11411 fix (unsolicited NS RRSets) |
Related skills