AgentSkillsCN

dns-protocol

精通 DNS 协议的实现、配置与服务发现技术。

SKILL.md
--- frontmatter
name: dns-protocol
description: Expert skill for DNS protocol implementation, configuration, and service discovery
allowed-tools:
  - Bash
  - Read
  - Write
  - Edit
  - Glob
  - Grep

DNS Protocol Skill

Expert skill for DNS protocol implementation, server configuration, and DNS-based service discovery.

Capabilities

  • •DNS Query Execution: Execute dig/nslookup queries and interpret results comprehensively
  • •Record Type Analysis: Work with all DNS record types (A, AAAA, CNAME, MX, TXT, SRV, NS, SOA, PTR)
  • •DNS Server Configuration: Configure BIND, CoreDNS, and other DNS servers
  • •DNSSEC Implementation: Implement and validate DNSSEC signing and verification
  • •DNS Traffic Analysis: Analyze DNS traffic patterns and detect anomalies
  • •Service Discovery: Design DNS-based service discovery (SRV records, DNS-SD)
  • •Zone Management: Manage DNS zones, transfers, and delegation
  • •TTL Optimization: Optimize TTL values for different use cases

Tools and Dependencies

  • •dig - DNS lookup utility
  • •nslookup - Query DNS servers
  • •BIND - Berkeley Internet Name Domain
  • •CoreDNS - Cloud-native DNS server
  • •dnssec-tools - DNSSEC utilities
  • •tcpdump - DNS traffic capture

Target Processes

  • •realtime-messaging-system.js (service discovery)
  • •layer7-load-balancer.js (DNS-based routing)
  • •http-proxy-server.js (DNS resolution)

Usage Examples

Comprehensive DNS Query

bash
dig +trace +all example.com
dig @8.8.8.8 example.com ANY

SRV Record Lookup

bash
dig _http._tcp.example.com SRV

DNSSEC Validation

bash
dig +dnssec +multi example.com
delv @8.8.8.8 example.com +rtrace

Zone Transfer Test

bash
dig @ns1.example.com example.com AXFR

Quality Gates

  • •DNS resolution verification
  • •Record propagation testing
  • •DNSSEC chain validation
  • •Response time benchmarking
  • •Zone configuration validation