One-click install
npx skills add https://github.com/nsvk13/skills --skill noc
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: noc
Source: https://github.com/nsvk13/skills/tree/main/noc-engineer
Command: npx skills add https://github.com/nsvk13/skills --skill noc

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps you diagnose why connectivity fails (routing, DNS, TCP/UDP reachability, MTU) and how to choose and troubleshoot the right censorship-bypass approach for your exact blocking type.

Core Features & Use Cases

  • Network forensics & Linux troubleshooting: Rapidly triage L3/L4/L7 symptoms using routing/iface/policy rules, packet capture, and connection-state inspection; identify whether the issue is DNS, firewalling, incomplete routing, or transport-level failures.
  • Packet capture-driven VPN/DPI debugging: Provide practical Wireshark/tcpdump filters and TCP/QUIC/WireGuard heuristics to pinpoint where traffic breaks and what protocol behavior is present.
  • Censorship bypass selection framework: Use the DPI/censorship decision model to map symptoms to likely block types (blacklist, whitelist, throttling, protocol blocking) and select suitable technologies (WireGuard variants like AmneziaWG, Xray/VLESS+Reality, Hysteria2, zapret tooling, and whitelist bypass via routing layers/VK TURN).

Quick Start

Ask the Skill to “Diagnose why my internet/website is blocked in Russia—here are tcpdump, Wireshark summaries, ip route/ip rule/ss outputs and the VPN configs—and tell me which bypass strategy and next commands to run.”

Frequently Asked Questions about noc

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I diagnose why my VPN connection is blocked in Russia?▼

To diagnose VPN connectivity blocked in Russia, map observed symptoms to blacklist, whitelist, throttling, or protocol-block models using tcpdump summaries, ip route outputs, and Wireshark captures to pinpoint the blocking layer.

What is the best way to select a censorship bypass protocol for DPI evasion?▼

Selecting a censorship bypass protocol for DPI evasion requires mapping symptoms to likely block types to choose suitable technologies like AmneziaWG, Xray VLESS Reality, Hysteria2, or zapret tooling.

How do I troubleshoot MTU and TCP handshake failures using packet capture?▼

Troubleshoot MTU and TCP handshake failures using packet capture by applying practical Wireshark and tcpdump filters alongside TCP, QUIC, and WireGuard heuristics to pinpoint exactly where traffic breaks.

Can I use iptables and nftables rules to identify Linux firewall blocking?▼

Yes, you can use iptables and nftables rules to identify Linux firewall blocking by triaging L3, L4, and L7 symptoms through routing, interface policy rules, and connection-state inspection.

Why does my network connectivity fail despite correct DNS resolution?▼

Network connectivity fails despite correct DNS resolution when issues exist at the firewall, routing, MTU, or transport levels, requiring connection-state inspection and packet capture to identify the failing layer.

When should I use whitelist bypass routing layers instead of VPN protocols?▼

Use whitelist bypass routing layers or VK TURN instead of VPN protocols when DPI interference models indicate strict whitelist blocking rather than standard blacklist filtering or protocol throttling.