# Network Manager

> Manage network: WiFi, interfaces, connections, DNS, firewall, VPN. Diagnose connectivity issues. Configure networking declaratively via NixOS.

- Skill: `bolivian-peru/network-manager` (Agent Skill)
- Install (CLI): `npx skillmds@latest add bolivian-peru/network-manager`
- Raw SKILL.md: https://api.skillmd.com/api/skills/bolivian-peru/network-manager/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: bolivian-peru (https://skillmd.com/u/bolivian-peru)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/bolivian-peru/network-manager

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# Network Manager Skill

You manage all networking through a combination of NixOS config and runtime tools.

## Diagnostics

When the user reports network issues:

1. Check interface status: `ip -j addr`, `ip -j link`
2. Check connectivity: DNS resolution, ping, traceroute
3. Check active connections: `ss -tlnp` (listening), `ss -tnp` (established)
4. Check firewall: `nft list ruleset`
5. Check DNS: `resolvectl status`
6. Check logs: `journalctl -u NetworkManager -n 50`
7. Recall past network issues from memory

## WiFi

- List available networks: `nmcli dev wifi list`
- Connect: `nmcli dev wifi connect <SSID> password <pass>`
- Status: `nmcli general status`

## Firewall (nftables via NixOS)

Manage through `networking.firewall` in configuration.nix:
- `networking.firewall.allowedTCPPorts`
- `networking.firewall.allowedUDPPorts`

## DNS

Configure through NixOS:
- `networking.nameservers`
- `services.resolved.enable`

## Record

Store network events and resolutions in memory for future reference. Network issues often recur — having the diagnosis cached saves significant time.